thailand weather for travel

Climate - Thailand

The climate in detail

• 1- North - Chiang Mai, Lampang
• 2- Bangkok and surrounding areas - Pattaya

3- The rainy coast

• 4,5 - Peninsular Thailand - Ko Samui, Phuket
• 6- Mountains

El Niño and La Niña

What to pack, 1- the north.

2- Bangkok and surrounding areas

4,5 - Peninsular Thailand

6 - Mountains

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The Best Times to Visit Thailand for Great Weather, Low Prices, and Fun Festivals

Here are the best times to go to Thailand based on what you want to see and do.

Anne Olivia Bauso is a travel writer and hotel expert based in New York City. She has written hundreds of hotel reviews, from 5-star Ritz-Carlton properties to treehouse eco-resorts in the jungle.

The Best Times to Visit Thailand for Smaller Crowds

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Thailand is one of the most accessible and well-loved travel destinations in Southeast Asia. It's a great place to visit any time of year, but there are better times than others for specific activities like scuba diving and island-hopping.

"Thailand is a tropical country with two distinct seasons," says Jack Tydeman , a Travel + Leisure A-List travel advisor and Southeast Asia specialist for Audley Travel . "It is typically warm all year round. However, the winter months from November through March are the peak dry season and are considered the best time to travel to the majority of the country. April is the hottest month in Thailand before the country moves into the wetter season from May through October."

Here's a breakdown of Thailand's main travel seasons:

• High Season: November to March
• Shoulder Seasons: April to June and the month of October
• Low Season: July to September

Before you book your jungle tree house and island boat tour, learn about the best times to visit Thailand.

Michela Buttignol/Travel + Leisure

Thailand's low season coincides with monsoon season. With the exception of the Thai islands, which draw students from Australia and Europe during their college breaks, the wet and muggy climate keeps many tourists away between July and September. Going during this quiet time has its perks: you'll get cheaper accommodations, better access to restaurants and activities typically inundated by vacationers, and potentially more of a local experience. At the same time, there are limitations. Rains could come in brief cloudbursts, or they could come in days-long downpours that affect boat service and island access. Tours are less abundant, and some hotels even close during the off-season, so be sure to plan ahead if you're considering a trip in the summer.

For ideal weather, visit Thailand during the dry season, which runs from November through March in most of the country, sometimes even lasting until April or May. A major exception is the Lower Gulf — home to the islands of Koh Samui, Ko Pha-ngan, and Koh Tao — which is rainiest from September through December.

On the Andaman coast, the coolest, most comfortable weather is around November to February, with average temperatures in the 80s and little chance of rain. This means clear, blue waters and gorgeous vegetation quenched from monsoon season.

As for the low season, it's best to temper your expectations. "It is possible to travel over the summer months. However, you may see some short, sharp showers," Tydeman says. "As the east coast of Thailand has its own unique weather patterns, summer is actually the drier season there."

Thailand is a relatively affordable destination throughout the year, though travelers may find the steepest discounts on flights, accommodations, and tours during the low season, July to September.

"The low season does have its advantages, as it's quieter and the rates are typically lower. This makes Thailand a great-value destination during the summer," says Tydeman. While this time of year is generally wetter, you might even get better natural scenery. "Summer is now commonly referred to as 'green season' due to the rains turning the countryside green and filling the rivers and waterfalls."

Travelers should try to experience at least one of Thailand's many festivals, which celebrate everything from flowers and fruit to monkeys and elephants. Two of the most beloved are the late-November lantern festivals: Yi Peng, during which participants release thousands of rice-paper lanterns into the sky; and Loy Krathong, when banana-leaf baskets are filled with flowers and burning candles and released onto lakes, rivers, and canals. Chiang Mai is the Yi Peng epicenter, and Loy Krathong is celebrated across the country.

The Chinese New Year in January or February turns Bangkok's Chinatown into a sea of dragons, drummers, worshippers, and visitors, all under the glow of firecrackers and red lanterns. Also in February is the three-day Flower Festival in Chiang Mai, which features a parade of elaborately decorated floats.

Songkran (aka the Water Splashing Festival) ushers in the Thai New Year in mid-April with parades, parties, and performances across the country. Songkran turns Thailand into "one big water fight," Tydeman says. "It also coincides with the hottest month of the year, so it's a perfect excuse to get wet."

The Vegetarian Festival takes place in late September or early October and commemorates a nine-day abstinence from meat in honor of the Nine Emperor Gods of Taoism.

Divers from all over the world flock to Thailand to explore the country's famous underwater sites and stunning marine parks. Thailand's east coast is largely dive-friendly throughout the year. If you plan an excursion to the Andaman Sea, home to the extraordinary Similan and Surin Islands, time the trip between November and April, when the seas are calm and visibility is clearest. Also keep in mind that Similan and Surin marine parks close from mid-May to mid-October.

Boating from one jungle-topped limestone island to another is a great way to explore Thailand, but downpours between May and October can put the kibosh on nautical fun. Some southern Andaman resorts even close for the rainy season.

"The islands off the west coast, like Phuket, are best to visit in the winter months, whereas the islands off the east coast, like Koh Samui, are great to visit in the summer," says Tydeman.

This means you should time your bouncing around Phuket, the Phi Phi Islands, Ko Lanta, and other Andaman isles between late October (when the rains taper off) and May or June. Conversely, Gulf of Thailand idylls Koh Samui, Koh Tao, and Ko Pha-ngan are at their rainiest and windiest between October and December.

No matter what time of year you visit Thailand, try to fit in at least one weekend in Bangkok so you can experience the vast Chatuchak Weekend Market . Many of the stalls are covered, so you can visit even on a rainy day. Tydeman also recommends visiting Bangkok's night markets, which offer "everything from original artwork and designer bags to kitschy souvenirs and secondhand books."

Chiang Mai 's weekend markets deserve a look as well. Every Saturday night, Wua Lai Road (just south of the Old City) closes to traffic and hosts silversmiths, wood carvers, clothing purveyors, sketch artists, and performing musicians. On Sundays, the scene essentially repeats itself along the length of Ratchadamnoen Road, which bustles with artists, food vendors, and massage stations.

There is no objectively bad time to visit Thailand. Each season has its benefits, but most people avoid traveling during the heaviest monsoons, which can disrupt public transportation and make exploring Thailand's stunning natural sites wildly uncomfortable (if not impossible). Forget renting a motorbike or riding ferries during the wet season. Though you're more likely to snag accommodations for cheap, you're liable to spend more time at your hotel than you bargained for, waiting for the downpours to pass. If you're averse to heavy rains and thick humidity on vacation, avoid planning a trip to Thailand in August and September.

The best time to visit Thailand

Jan 3, 2024 • 5 min read

Find the best time to visit Thailand for you © Chadchai Ra-ngubpai / Getty Images

Silky-soft beaches, jungle-draped mountains, incredible food and a well-connected position at the heart of Southeast Asia have made Thailand a tourism hub for decades.

It welcomes more than 11 million visitors a year. All the same, travelers who dream of perpetually sunny skies and balmy weather might be dismayed at the pelting rain that arrives like clockwork every July or the sky-high price of their hotel from December to January.

The kingdom is full of diversions – myriad night markets, thundering waterfalls, even cherry blossoms and the occasional dusting of frost – but to experience them for yourself, you need to be in the right place at the right time. Here’s how.

December to February is best for beaches

The prevailing joke about Thai weather is that the country has three seasons: hot; wet and hot; and really, really hot. That may be, but when the “cool” season rolls around in December, you will find Thais bundled up in sweaters and even puffer jackets to combat temperatures that fall as low as 23°C (73°F).

While this may be cold for Thais, it’s perfect for international travelers hitting the beach, especially those escaping the northern winter, and resorts like Phuket , Samui and Krabi are predictably packed with sun-seekers at this time of year.

Daytime highs of 31°C (88°F) make outdoor activities warm but bearable, while nights are a hive of activity, with street food vendors lining the sidewalks and markets clad in fairy lights tempting even the most unwilling of shoppers.

The cool season is not for beachcombers alone. This time of year sees frost up north in the mountains as temperatures drop to 13°C (55°F). The northeast region even ushers in its own cherry blossom season as Phu Lom Lo erupts in a burst of pink Himalayan cherry blooms. Early morning hikers are rewarded with sunrise views over a sea of fog at the northern border with Laos , and wildflowers dapple the slopes of Doi Suthep and Phu Tabberk .

Not surprisingly then, this time is considered Thailand’s high season, when hotel and transportation prices are at their peak. However, the payoff is the kingdom at arguably its most beautiful and welcoming, temperature-wise.

March and April are best for tropical fruit and Songkran

The weather, even for Thais, becomes alarmingly toasty during Thailand’s “summer” when temperatures average 30°C (87°F). School is out, meaning the capital is less crowded than usual, and the beaches are typically jammed with Bangkokians seeking reprieve from the heat. Meanwhile, temperatures in the usually temperate north soar to 36°C (97°F).

While it may seem a miserable time to visit, foodies will have a field day because all of Thailand’s most beloved fruits – mangoes, mangosteens, rambutans and Marian plums – are in season.

In mid-April, Thailand celebrates its new year, Songkran , and the streets burst into joyful water fights. You’ll find the entire country in celebration: families seeking blessings from their elders, Thais dancing in the streets, and travelers receiving benedictions in the form of perfumed water on the hands, daubings of brightly colored powder on the cheeks or (most likely) a blast of water in the face. Fans of water fights (and getting drenched) will find their like-minded brethren anywhere in the kingdom.

Meanwhile, fans of an empty Bangkok can take advantage of… an empty Bangkok. That means breezy commutes from one end of the city to the other, less competition at popular restaurants and fewer crowds to contend with at shopping malls and theaters. The change in the city is so pronounced that quite a few Bangkokians prize this time of year, opting to make sure that when Songkhran rolls around, they celebrate in the capital.

May to October is best for accommodation bargains

Thailand’s rainy season is long, but it doesn’t necessarily mean non-stop torrential downpours. Monsoon rains, especially before July, are typically violent but short, usually arriving in the early evening and lasting for 20 to 30 minutes. (Luckily, Thailand’s location means it avoids the strong typhoons experienced by Vietnam and the Philippines.) The problem is Bangkok traffic snarls for hours as a result, but travelers in less congested destinations are not necessarily affected, and hotel and transportation prices linger at months-long lows.

From May to July, beach resorts on the Andaman Sea side of Thailand – especially on weekdays – are basically deserted, claiming only a fraction of the prices they would normally charge during high season. This means that even at five-star resorts, choice rooms can be rented for far less than their usual rate. And while there will likely be daily rains, they’re usually brief.

Low-season rates extend to non-beach-but-still-popular destinations like Chiang Mai and Khao Sok , where a treasure trove of accommodation options, from floating bungalows to mountaintop cabins, awaits savvy bargain hunters willing to put up with a sudden shower or two. In contrast, July and August are peak season for islands in the Gulf of Thailand like Samui , where the weather is less affected by monsoon rains.

From September to October, the northeast is brimming with waterfalls, providing impromptu bathing areas for visitors with the foresight to bring bathing suits or even just towels. A word of warning: this is also when flooding may occur in the north or northeast, with water reaching all the way to Bangkok in some years. Only riverside areas are at risk, so make sure to check before you go.

November is best for experiencing Loi Krathong

November marks the beginning of the dry season and is considered the shoulder to high season, but bargains can still be found among the bigger local hotel chains.

On the night of November’s full moon, the country celebrates its Loi Krathong festival, marking the end of the rainy season. This is also when people float away their sins by placing candles on makeshift river rafts or lanterns in hopes of welcoming the coming year with a clean slate.

This article was first published Mar 2, 2021 and updated Jan 3, 2024.

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Weather in Thailand: Climate, Seasons, and Average Monthly Temperature

Thailand is a Southeast Asian country recognized as a destination for tropical beaches, grand palaces, ancient ruins, and Buddhist temples . Thailand has a tropical climate with a distinct monsoon season, which means that whatever time of year you visit , it’s going to be warm, humid, and might even be wet.

There are three seasons in Thailand which can be described as the following: a cool season between November and February, a hot season between March and May, and a rainy (monsoon) season between June and October. Heat, humidity, and rainfall vary significantly, depending on where and when you’re traveling. 

Cyclone Season in Thailand

Cyclones, also called typhoons, typically affect continental Thailand. While Vietnam, Laos, and Cambodia bear the brunt of these powerful storms from the Pacific, they still bring heavy rains. Thailand is typically prone to typhoons from June through December, although they are more common from September to November. Indian Ocean cyclones can occur year-round due to the warm sea but are most common between April and December. In general, Thailand is less affected by storms than its Southeast Asian neighbors.

Popular Areas in Thailand

 Chiang Mai and the rest of the northern region of Thailand enjoys cooler, milder weather throughout the year. During the cool season, average highs are around 80 degrees Fahrenheit (27 degrees Celsius), and average lows dip down to 60 F (16 C). Temperatures can go even lower up in the mountains, making it the only region in Thailand where you’ll even need a sweater outside.

Travelers should keep in mind that hot season temperatures can easily hit above 90 degrees Fahrenheit (32 degrees Celsius) or higher during the day. The weather doesn't cool off much at night, although higher elevations in some areas make it more bearable than in the rest of the country. In regards to inclement weather, the rainy season sees less rain here than in other parts of the country. Regardless, monsoon storms can still be dramatic and intense, especially during September, which is the rainiest month of the year.

The best time to visit Northern Thailand is between October and April, although travelers should keep in mind that this is the peak tourist season.

Bangkok and Central Thailand

Bangkok's three seasons all share one thing in common: heat. The coldest temperature ever recorded in Bangkok was 50 degrees Fahrenheit (10 degrees Celsius), and that was back in 1955.   Cool season temperatures are generally around 80 degrees Fahrenheit (27 degrees Celsius), so it’s no surprise that it’s such a favorite time to visit.

During the hot season, visitors can expect highs to reach above 90 degrees Fahrenheit (32 degrees Celsius), with some sweltering days even hotter. If you’re visiting Bangkok during the warm season, make sure to plan activities around the weather, as the heat makes it difficult to walk outside for too long. For most of the rainy season, temperatures cool off by a few degrees, and storms only last an hour or two before passing. 

Tourist season is the highest in November through March for cities like Bangkok. Since the weather cools dramatically during December through February, travel is a bit more pleasurable during these cooler months.

The weather in Southern Thailand follows a slightly different pattern than the rest of the country. There’s no cool season, as temperatures only vary by about 10 degrees between the hottest and coldest months of the year. It's typically between 80 and 90 degrees Fahrenheit (27 and 32 degrees Celsius) on average in cities like Phuket and the Central Gulf Coast.

The rainy season happens at different times on the peninsula, whether on the east or west side. If you’re in the west, where Phuket and other Andaman Coast destinations are, the rainy season starts earlier in April and lasts through October. If you’re on the east side, where Koh Samui and the other Gulf Coast destinations are, most of the rainfall happens between October and January.

Tourists most commonly travel to southern Thailand between November and February when the weather is cooler and drier. To avoid hot weather and monsoon season, it's recommended to visit during the more popular months.

Spring in Thailand

Early spring in Thailand is still considered the dry season in Thailand and is quite hot, with temperatures during the day regularly exceeding 95 F (35 C)—if not more. Humidity matches the temperatures, which means being outdoors can be almost unbearable for those who are sensitive to heat. Given the temperatures, May is among the most affordable months to visit Thailand.

What to Pack: Pack light, breathable clothing, preferably moisture-wicking. Spring is hot and wet, and you'll want to dress accordingly.

Summer in Thailand

Prepare yourself for more high temperatures in the summer, with the addition of heavy rains. Prices are cheaper for travel and accommodation during the summer, but temperatures are usually upwards of 96 degrees. June, for example, averages 90 F (32 F) with ocean temperatures of a balmy 82 F (28 C). Koh Samui is typically the warmest location during the summer months. If you're sensitive to heat or high humidity, these months are best avoided.

What to Pack: Like spring, summer in Thailand is scorching. In addition to comfortable clothing, you don't want to forget bug spray, sunscreen, and a good hat to protect you from the sun. Summer is also quite wet, making a lightweight poncho or raincoat an indispensable part of any traveler's wardrobe.

Fall in Thailand

While Thailand doesn't experience traditional fall, September marks the end of the rainy season. Luckily, temperatures begin to drop as well, averaging around 86 F (30 C). This is still considered the low season too, which means visitors will find uncrowded beaches and a warm sea. October is dry and pleasant as well, but this marks the return of tourists to the country. The rainy season ends for good in November, except for the southeastern part of the country.

What to Pack: In fall, you can begin to pack away your rain gear, but temperatures are still quite warm so dress accordingly.

Winter in Thailand

Winter is Thailand's most popular season for beach visits and sightseeing. The winter is dry and warm, with temperatures of around 86 F (30 C) in the south and as cool as 75 F (24 C) in the country's northern reaches. December and January are the country's most-visited months, but February is popular as well and still a great month for beach-going; water temperatures usually hover around 80 F (27 C).

What to Pack: Winter is Thailand's "coldest" season, but cotton and linen fabrics are still a must. In the country's northern more mountainous regions, a sweater or other light cover-up might come in handy for cooler nights.

Bangkok Post. "Cold weather: Record lows kill 63, destroy crop." December 2020.

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Thailand Weather: A Guide to Seasons, Rainfall & Temperature

Thailand has very different weather patterns to the western world. Seasonal changes can vary in different regions of the country and can be quite intense.

Monsoon rains that often cause flooding follow long hot dry spells with high humidity. There's even a so-called “cool season”.

In short, it's important to check the weather before booking your holiday dates.

This guide will help you book your trip around the varying weather conditions in Thailand and choose travel dates that provide the best climate.

• General seasons
• Central Thailand

Thailand Weather: Region by Region

Thailand has three major seasonal differences to consider: Hot and dry, hot and wet, and a cool season.

Although these seasons are true country-wide, the times for them in different areas can vary.

Also worth considering is how far south you are heading. The further south you go, the closer to the equator you will get and, depending on the season, that can mean monsoons or long afternoon heat swells.

General Seasonal Changes

Most regions have similar seasons, though the timing of the most intense heat and rainy periods can vary.

There are specific tourist areas, as we'll discuss, that have quite different weather patterns, such as Koh Samui and Phuket. However, as a general rule, the three seasons in Thailand are as follows:

• Dry Season: March-May
• Rainy Season: May-October
• Cool Season: November-February

Okay, so that's a general overview, but let's further break this down and have a closer look at the five major regions. After that, we'll look at individual popular tourist areas.

Central Thailand:

The heart of the country is mostly flatlands, with the lower boarder falling into the Gulf of Thailand.

Humidity remains pretty consistent year round, but you will find all three seasons represented here.

February to June is the hottest time of year. Sunscreen and a hat are a must!

The heat is followed by the rainy season from July to October, where each year 1,400 millimeters of rain spills across the landscape.

However, the impact doesn't begin immediately and you’re unlikely to see any long, rainy days until the latter part of the season. August/September are when things really start to get going.

In fact, this goes for every region in Thailand. The rainy season can be cited as being as long as 5 months, but in reality there is very little rain for much of this period. Most rain comes in short, strong 30-minute bursts.

The slightly cooler season runs from November to January. I say slightly because to me it's always hot, though I have felt relatively chilly mornings in the big mange – cool enough to warrant a hoody.

The Northeast:

The home of sticky rice and spicy foods, the northeast is a dry plateau with few hills. There are many rivers in this part of the country and the monsoons usually bring these rivers to their spilling point.

Here they get the same 1,400 millimeters yearly average rainfall as the central folks.

June to October is the rainy season when everything turns a deep verdant green and the waterfalls begin to gush with intensity. August and September see the most rainfall.

November to February is the cool season. Travelers usually enjoy this time of year because it almost never rains and yet the heat is nowhere near oppressive as the hot season, which runs from March to May.

If you intend to stay in the hotter months, make sure you book a room with air conditioning, as temperatures rise to a lofty 35°- 45°C. If you can endure the heat, it's at this time of year you’ll find many cultural festivals taking place.

+ Click to view chart in full size

This East's climate is mostly similar to central Thailand. However, when the hot season kicks off in March, the temperature can reach a brutal 40-45 degrees Celsius until around October.

The cooler months –November to February – are usually very pleasant for those tourists accustomed to the European bitter cold at this time of year.

As true for the rest of Thailand, there are only a few days at a time of what could be considered “chilly weather” during these months.

By May the rainy season is ready to arrive. Earlier in the season you'll experience patchy rain with bouts of no more than 30 minutes at a time. Constant, heavy rain doesn't usually occurs until October.

Up here is mountain country, where crisp rivers separate many of the peaks and the climate swings are a bit more diverse, which is great for all kinds of agriculture, as well as for various type of traveler.

You’ll want to trek up this way if you want to avoid the sticky heat of the south, but be sure to choose the right time or you’ll find it to be just as hot.

You might want to avoid travel between March 1st and April 12th, as this is crop-burning season, which can see air quality levels plummet. Many expats vacation away from the region at this time.

Unfortunately, this coincides with March and April being the hottest months of the year, However, despite the rainy season officially being from May until September,  the rain doesn't usually kick off until July. And the further north you go, the more uncommon it is to see much rain until later in the season.

If your intention is a more tropical, beach style holiday, the southern region of Thailand is exactly what you're looking for.

In the south the monsoon rain comes in May thru October. The dry season is November to May. However, some popular tourist areas of the south such as Phuket and Koh Samui have heavy rain at different times.

Southern Thailand gets more rain than any other region, with 2,400 millimeters falling annually.

There aren't many chilly days down south, but you will appreciate the rain clearing the humidity after months of scorching weather.

Weather Guide for Thailand's Popular Tourist Destinations

Probably the most visited city in Thailand, with tons of things to see and do , the weather in Bangkok is fairly predictable.

During the rainy season you’ll want to carry an umbrella, but it's not guaranteed you'll need it.

Rain is sporadic and downpours don't usually last more than 30 minutes to an hour. Don't quote me on that though!

Bangkok has seen some pretty severe flooding in the past, though downtown usually drains pretty fast.

The rainy season is from July to October, and the cool season between November and February.

Average temperatures are 26°C, with highs around 33°C. The lowest you'll encounter is 21°C at night.

December is the coolest month, which makes it the perfect time for the tourist season. Attractions during this season will be at capacity.

Bangkok's hot season is from March to June and the average temperature will be around 31°C. As the season progresses it can get up to 34/35°C and rarely drops below 25°C.

+ See the best Bangkok hotel deals

Flooding in the Ratchada area of Bangkok (2012)

Not too far from Bangkok, Pattaya, aka Sin Cty, is one of the most visited places in Thailand.

The city has an average high of 31°C and a low of 22°C.

The hot season starts in March and doesn't cool until the end of June. Temperatures climb to 33°C and rarely dip below 27°C.

There is a cool season from November to March, with a few chilly nights (light jacket weather) in December and early January.

Pattaya is a beach town, so the ocean winds help to curb the heat. But as with all places in Thailand, the humidity doesn't quit easily and it's a blessing when the rainy season finally does set in between May and October.

Like Bangkok, the rainy spells usually don't last long, although September usually sees a couple of periods of 2-3 days rain.

Don't be put off visiting in the early part of the rainy season. If you can manage an occasional downpour, you'll find slightly cooler temperatures and less crowded beaches. And this being the low season, you'll find better hotel rates too (see the link below).

+ Get discounted Pattaya hotel deals

Chiang Mai:

As the second most populated city in Thailand, Chiang Mai is known as the ‘cool weather capital’.

In comparison to the sweaty heat of Bangkok, the climate can be far more agreeable.

The most popular travel season starts in December and lasts through February.

It's cooler at this time and can even be chilly at night. I've personally witnessed temperatures as low as 6°C!

Make no mistake though, this is still Thailand and the days can still get up into the 30°C range.

By early February the daily high can hit 40°C. March through June sees the heat and humidity ramp up, followed by the rain at the end of May.

As mentioned previously, due to slash-and-burn farming practices, you may want to avoid Chiang Mai between March and April. More on the crop burning season here.

The rainy season in Chiang Mai arrives mid-May and lasts until October, though as is the case elsewhere the monsoon rains don't really get into full stride until the back-end of this season.

The clouds cover the hills of Chiang Mai on a cold December morning.

While the beaches aren't as good as down south, Hua Hin is a great (almost) year-round holiday destination.

The cooler season spans November to February, where at night temperatures fall to around 24°C. However, the days warm up considerably, with highs in the low 30s. That said, being right on the coast helps keeps the air moving and cuts the humidity down

The hot season lasts from March until June, with April marking the start of the hottest months. Average temperatures are consistently in the low 30s.

The rainy season is from July through October, but Hua Hin usually doesn't see heavy downpours with any consistent frequency.

+ These are the best beaches in Thailand

The sun blesses the rocks of Pala-U waterfall in Hua Hin

Another of Thailand’s islands, this beautiful oasis is pretty much warm year-round but still has a significant rainy season.

April through May, and September through October, are the hottest times of year in Phuket, with an average temperature of 29°C and a low of 23°C.

But that doesn't mean you won't see rain during these months.

May to October is monsoon season. September and October are usually the wettest months, but it's rare that the island will have more than two full rainy days in a row, and oftentimes rain falls through the night and it's dry by morning.

The key difference is Phuket's rainy season is that the rains begin earlier than in other areas. The majority of the rain falls at the beginning of the season, sometime around early May, with an average 400mm a month.

Though the temperatures don’t vary much, January has the coolest average temperature of the year, with highs around 32°C and lows of 22°C.

Most travelers agree that November to February is the preferred time to visit, as temperatures are just a bit cooler and rainfall is scarce. 

Check out Surin, Kamala, Karon , and Kata beaches

The love of my life enjoys the sunset at Kamala Beach, Phuket.

+ View the best Phuket hotel deals

Due to its proximity to Koh Phangan, Samui is famous as a stop-over for Full Moon party goers. This is Thailand’s third-largest island and one of the most popular holiday destinations in Thailand.

There are three seasons in Koh Samui: The dry season (December until February), the hot season (March until August) and the rainy season (September until November).

Koh Samui is located fairly close to the equator, which keeps temperatures somewhat consistent throughout the year and daily averages are often above 32°C.

The official cool season starts in November and lasts through January, though the temperature doesn't vary that much and during this time can still be an average 30°C, with an average low around 25°C.

The beaches remain packed until the rainy season begins in September, which is a good time to visit Phuket instead.

Flooding does occur in Samui and you will see waist-high water in the main tourist area of Chaweng after a serious downpour.

+ Get discounted Samui hotel deals

A fruit seller opens a pineapple in front of the crystal blue sea of Chaweng Beach, Koh Samui

Wherever you’re headed in Thailand, you’re almost guaranteed to enjoy a holiday of a lifetime. I hope this guide has given you a good idea of where to go, when to go and what to pack.

If you're still unsure on the best time to visit a particular province or city, drop a question in the comments and myself or another reader will be along to help shortly

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Best Time to Visit Thailand: When to Go & When to Avoid!

Home » Blog » Travel Tips » Best Time to Visit Thailand: When to Go & When to Avoid!

Thailand makes an excellent destination for backpackers, vacationers and digital nomads year-round. However, the seasons vary widely from region to region and coast to coast. We’re going over the seasons of each region to help you determine the best time to visit Thailand for your travel needs!

Located smack dab in the center of the mainland Southeast Asia, Thailand makes an excellent destination throughout most of the year.

However, in order to avoid monsoon rains and smoke season, you’ll want to be sure to do a little research and planning before packing your bags so you are sure to visit the right places at the  right time .

That’s why we’re here!

With such a diverse landscape throughout the country – from the mountains in the north to the islands in the south – the climate in Thailand varies widely from region to region.

Plus, the seasons are not as straight forward as in other places in the world. Instead of winter, spring, summer and autumn, the Thai seasons are best described as “cool”, “hot” and “rainy”.

In this article, we’re going over the seasons of each region to help you determine the best time to visit Thailand for what you’d like to see and do on your trip.

When is the best time to visit Thailand?

In general, you’ll find the most comfortable temperatures across the country, with little chance of rain, from November – February. 

Now, let’s break it down by region…

Bangkok and Chiang Mai

Bangkok and Chiang Mai have the best weather from  November – February . Outside of these months, you can expect heavy rains and extreme heat, with lots of smoke in the north of the country.

Andaman Sea

If you plan to visit the Thai islands, the best time to visit the Andaman Sea (Thailand’s southwest coast) is  November – April . Monsoon season is May – September in this region, so you will likely want to avoid it during this time.

Thailand’s Gulf 

Thailand’s Gulf Coast will have its best weather from  December – March , but the summer months ( July – September ) are also a decent time to visit and the crowds tend to be fewer. Monsoon season in the Gulf is much shorter than the Andaman Sea, generally lasting from October through the end of November.

When should I travel to Thailand?

As with any destination, there is no straightforward answer to this question. But we’re not going to leave you hanging…

In this article, we’ve organized Thailand’s seasons by region, and listed some of the best things to do during each season all over Thailand. We hope reading through these suggestions will help you decide the best time to visit Thailand for YOU.

Answer these questions to get started:

• What region of the country do you plan to visit?
• Do you mind a bit of rain?
• Are you easily bothered by crowds?
• Are you negatively affected by high humidity?
• Do you prefer to spend your time outdoors hiking?
• Are you planning to do some scuba diving while in Thailand?

Thinking about your answers to these questions is going to help you start to determine when to visit Thailand.

Best time to visit Thailand Guide

General Thailand Info

Our experience in Thailand

Thailand geography overview, map of thailand, weather in thailand.

• What to pack for Thailand

Know where you’d like to go in Thailand? Jump to that section of this article so you can quickly see what time of year will bring the best weather.

Seasons by Region

• Northern Thailand
• Central Thailand
• West Coast (Andaman Sea)
• Gulf of Thailand

Where to go during each season

Not sure where you’d like to go, but know what time of year you’ll be traveling? Click on the months so you can see which destinations will be best during that season.

• November – February  (“Cool Season”)
• March – May  (“Hot Season”)
• June – October  (“Rainy Season”)

Overall BEST Time to Visit Thailand

Want a quick recommendation? Jump down to see our advice for the best time to visit Thailand. Plus, we’ll share what times of year we’d avoid visiting!

• Our Recommendation…

Be sure to download our  complete packing list for Southeast Asia !  It’s packed with good suggestions and  insider tips  to help plan your Mexico vacation. And it’s completely  FREE , so why not!?

We’ve visited Thailand in all seasons

Our experience:

• We’ve spent quite a bit of time living and traveling in Thailand, and with the exception of June, we’ve been in Thailand during every other month (many of which we’ve been multiple times).

Our favorite time of the year in Thailand

November – January

This is easily our favorite time of the year to visit Chiang Mai and the surrounding area. It’s also a great time to visit the Andaman Coast and the islands in the Gulf.

Worst time to visit Thailand

Starting in mid-February, the burning season begins and it’s not a good time to be in the northern part of the country. We’ve been there for the burning season twice, and it’s rough. (Not recommended!) 

By April, it is uncomfortably hot in the north. The only reprieve is the (very fun!) Songkran celebration (a water festival) which takes place during April. 

Good to know: From February through April, the islands and coasts can be a better choice.

The summer months are very hot, muggy, and rainy in Thailand and can bring monsoon weather to the islands and Andaman Coast.

Thailand is a country in the middle of mainland Southeast Asia with nearly 320,000 square miles (513,120 km²) an odd shape with a long tail leading down towards the equator.

Thailand has everything from high mountains and an upland plateau in the north, to central plains and tropical islands in the south.

The map above shows a very rough break down of the northern, central and souther regions of the country. Generally speaking, you can consider Chiang Mai and Chiang Rai to be in the north, Bangkok is part of central and the lower leg and Thai islands make up the south.

The weather in Thailand varies from region to region with the north experiencing the greatest fluctuation in temperatures throughout the year and the south experiencing very little variation the closer you get to the equator.

The climate is mostly tropical with warm temperatures throughout the year (with the exception of the mountains in the far north).

The seasons in Thailand can be categorized into three main groups: Cool, Hot and Rainy.

Though somewhat unpredictable, and varying from coast to coast and by region, they follow the general pattern below.

• Cool season:  November to February; also peak tourist season
• Hot season:  March to May
• Rainy season:  June to October

The cool season  is felt most distinctly in the far north, but temperatures hardly change in the south.

The hot season  is essentially the dry season where central and north are at their highest temperatures with clouds of dust gathering in the air.

The rainy season  is caused by the southwest monsoon, which is unpredictable. However, the Gulf Coast is effected less by the southwest monsoon and more by the northwest monsoon, causing November to consistently be its wettest month.

We’ve broken down the seasons by region below to give you a better idea of the climate in specific areas.

Seasons in Northern Thailand

The weather in northern Thailand tends to be less humid and experiences the greatest rage of temperatures throughout the year. During January, the average low temp in Chiang Mai is 59ºF (15ºC). On the flip side, during hot season, the north of the country is dry and dusty and temperatures can skyrocket.

• Hot Season:  February – April
• Rainy Season:  May – September
• Cool Season:  October – January

What to pack for visiting Northern Thailand

• Lots of layers for cooler nights and warmer days
• Good hiking shoes or
• Swimwear – even though you’re not by the water, there are plenty of pools and waterfalls!

Seasons in Central Thailand

Central Thailand experiences the country’s three seasons fairly equally throughout the year. The one constant is humidity, which makes the air feel hotter than it should.

• Hot Season:   March – June
• Rainy Season:  June – October
• Cool Season:  October – February

What to pack for visiting Central Thailand

• Loose, lightweight clothes & layers
• A shawl or scarf to cover your shoulders when entering temples and religious sites
• An  insulated water bottle  to stay hydrated

Seasons in South Thailand & the Thai Islands

Temperatures in southern Thailand are more consistent throughout the year, with less variation the closer you get to the equator. There is really only 2 seasons down here: wet and dry.

The climate does vary from coast to coast in the south based on the different monsoons. Which is why we’ve split up the coasts below to show seasonal variations.

A Note About Diving:  Diving and snorkeling will be at it’s best during the winter months. December and January will be more crowded since it’s the peak season. If you want to see some mantas and local whale sharks, it’s best to plan your trip around February to April. 

Phuket, Krabi & Andaman Coast (Southwest Coast)

• The wettest months are September and October
• Dry Season:  mid-November – March

Koh Samui, Koh Phangan, Koh Tao (Gulf of Thailand)

• The rainiest months are October and November
• “Shoulder season”  (not too much rain): January and February
• May – October can be windy

What to pack for visiting Southern Thailand

• Reef safe sunscreen
• Bug repellant  (solids are the way to go!)
• A wide brimmed hat or baseball cap to keep the sun out of your eyes

Cool Season in Thailand: November – February

Peak of the dry season in most parts of the country, November sees cooler temperatures and plenty of sunshine. The western Thai Gulf coast is the only part of the country still experiencing rain.

Getting into the peak of tourism season in Thailand, weather is great all over the country and temperatures are relatively cool. There is little to no rainfall and tourists flock to the beaches for plenty of sunshine.

Peak tourism season and great weather all over Thailand. Accommodation will be at premium prices, and you should book well in advance. The cooler temps in the northern region are great for hiking in the mountains and trekking through the jungles. 

Still peak tourism season all over the country. The Chinese New Year typically happens in February (thought it follows the lunar calendar and the exact vary from year to year).

Best places to visit during cool season in Thailand

• Northern Thailand  experiences the most comfortable weather of the year during this time.  Chiang Mai , Chiang Rai and  Pai  are all great places to add to your itinerary.
• Consider visiting  lesser known destinations , as this time of year is peak tourism season.
• Sam Phan Bok:  A natural wonder only accessible during dry season. Found in Ubon Ratchathani, Isan, thousands of holes are scattered across the Mekong River bed. 
• Bo Sang , a small village in the north hosts their annual Umbrella Festival on the 3rd weekend in January. 
• Chinatown in  Bangkok   is a fun place to witness the Chinese New Year celebrations.
• Visit some of the  Thai Islands in the Andaman Sea  such as  Koh Lipe ,  Koh Lanta  and Phuket.

Best things to do in Thailand during cool season

• Celebrate the  Yi Peng Lantern Festival in Chiang Mai   in November.
• Visit temples in  Bangkok   such as Wet Saket during the Thai national holiday of Makha Bucha to observe spiritual rituals.
• Krabi Naga Fest , a music festival near Krabi.
• Jai Thep Music and Arts Festival  takes place in Chiang Mai in early February.
• Loy Krathong festival is celebrated around the country  by floating krathongs on the rivers to give thanks to the water spirits.
• Ayutthaya World Heritage  and Red Cross Fair boasts stunning light shows amid the ancient ruins.
• Big Mountain Music Festival  in Phetchaburi happens in December.
• The Andaman coast  is at it’s best in November, so it’s a perfect time to go  island hopping .

Hot Season in Thailand: March – May

Temperatures are starting to heat up all over Thailand, so it’s best to stay near the water. In the north, burning season is in full force, so you’ll want to avoid traveling there as much as possible. (Trust us, we lived in Chiang Mai during these months, and we would  not  recommend it.) Instead, this is prime time for  diving in the Andaman Sea  at popular locations such as the Similan Islands. 

One of the hottest months in Thailand. Be sure your accommodation has air conditioning if you are visiting during this month. Remember to drink lots of water and use plenty of sunscreen too. 

Another incredibly hot month in Thailand. With many public and religious holidays, it’s a good time to get off the beaten path and experience new and interesting cultural celebrations. 

Best places to visit during hot season in Thailand

• The  ancient city of Ayutthaya  is a great place for boxing fans to visit on National Muay Thai Day
• Bangkok, Phuket or  Chiang Mai   during Songkran Festival
• Similan Islands liveaboard   for scuba diving in the Andaman sea

Best things to do in Thailand during hot season

• Turtle Release Festival  in Phang Nga in March
• Thailand’s International Balloon Festiva l happens around this time in a different location every year
• Pattaya International Music Festival:  one of Thailand’s best, takes place over a 3-day weekend in March and it’s 100% free to attend!
• Check out a Muay Thai demonstration on  National Muay Thai Day  on March 17
• Songkran Festival  is famous for it’s water fights in the streets takes place around the country in April during the Thai New Year

Rainy Season in Thailand: June – October

The start of the rainy season means you’ll want to carry an umbrella and wear shoes that can get wet. Take extra precautions on scooters as the roads can be dangerous when wet.

Wet and humid all over Thailand, you’ll want to pack and umbrella and wear plenty of bug spray! Be careful of leeches if you are planning on venturing into the jungle.

Typically the wettest month in all of Thailand. Come prepared for the rain and be sure to have a long list of indoor activities to entertain yourself during this month. 

This is the wettest time of year on the Andaman coast, but rains generally ease up in the north. 

Central and Northern Thailand will have dried up by October, but nearly all of the islands on both coasts will still be experiencing heavy rain.

Best places to visit during rainy season in Thailand

• National Parks such as  Khao Yai National Park and Kanchanaburi’s Erawan National Park  will be wonderful this time of year.
• Koh Samui, Koh Phangan,  Hua Hin, and Cha Am will be some of the driest beaches and islands to visit.
• Bangkok  for its magnitude of indoor activities and International festivals.
• The  small mountain town of  Pai  for its decent weather in October.
• Visit the  Mekong River  in the north to experience the mysterious natural phenomenon known as Naga Fireballs of Nong Khai in late October.

Best things to do in Thailand during rainy season

• Phi Ta Khon Festival in Dan Sai district of Loei province
• Go chasing waterfalls!  They will be at their fullest during the rainy season.
• Visit the  floating bungalows in Khao Sok National Park  
• Ubon Ratchathani Candle Festival in Isan
• Scuba diving in Koh Tao
• Visit temples, museums, art galleries and malls  to stay indoors as much as possible during the rain.
• Experience  long boat races  on rivers all over the country in September.

The best time to visit Thailand in our opinion…

There really is no “bad” time to visit Thailand, but it’s a good idea to have the seasons in mind when planning your itinerary and activities you’d like to experience during your trip.

Our personal pick would be to visit Thailand between November and February, as you’ll have great weather all around the country.

When to avoid traveling in Thailand

• Chiang Mai : If possible, avoid visiting from mid-February through early April. This is “burning season” and air quality can be quite bad.
• Andaman Sea  (Krabi, Phi Phi, Phuket, Koh Lanta) : Rainy season is from May – October
• Gulf Islands  (Koh Tao, Koh Chang, Koh Phangan, Koh Samui) : Rainfall is heaviest in October & November
• Similan Islands : The National Marine Park is closed between the months of November through March.

What to pack for your trip to Thailand

We know it can be overwhelming packing for a trip to a new destination. That’s why we spent hours creating this super helpful PDF just for you.

In this free SE Asia packing list PDF download , we’ve provided packing checklists for everything from clothing and toiletries (for both women and men!) to what shoes to pack and extra medicines you may want to have on-hand just in case.

Plus, we’re sharing tons of packing hacks and tips for traveling in SE Asia that you won’t find anywhere else!

Are you planning a trip to Thailand?

We have TONS of resources on travel in Thailand and destinations throughout the country. Check out our  Ultimate Thailand Travel Guide  for all the answers to your most burning questions, or read some of our favorite articles below.

• How to Travel Sustainably in Thailand
• Thailand Beaches: Two Week Island Hopping Itinerary
• Scuba Diving in Thailand: The Best Liveaboards for Every Budget
• Can’t-Miss Things to Do in Bangkok

Save this article on Pinterest for later!

We want to hear from you!

Have you ever been to Thailand before? When did you go and what was your experience like? Leave your comments in the section below and we’ll do our best to respond to any questions!

Comments (7) on “ Best Time to Visit Thailand: When to Go & When to Avoid! ”

Thailand is everyone first choice for holiday.

Hello ! I will be traveling to Thailand from May 12 to May 29th 2023 with my family. Is there any destinations that are closed to tourists to due the low season or rainy season? Which areas do you recommend me to go in May to avoid rain 😉 Thank you

Hello Wanderers! I am planning to visit Thailand later in the year, after having been there back at the turn of the century. I was very drawn overall toward the culturally rich aspects of life. My query is related to the continuing Covid 19 pandemic waves, and the related fallout: sudden travel restrictions, new testing rules, already booked reservations, which one is then unable to fulfill. Is there a thing such as outright relevant cause to have some pre-booked accommodations annulled, due situations fully beyond a tourist’s control, like a cancelled / well delayed flight, or service shutdown. Wonder if you could share feedback. Cheers ! Julius

This is a useful blog detailing about the best time to visit Thailand. What I liked about it is the description about the climate region-wise that makes planning a trip easy.

Hi, great page – comprehensive, yet easy to read, and great pictures. Maybe you can include a map of the country, making it easier for readers to see where these wonderful places are geographically located. Thanks.

Been to Thailand Phuket before loved it. Coming back next year in August 2022. Can you tell me. Are we able to travel to phi phi island. , And I’m praying Phuket will be open for international visitors. From AUSTRALIA, That are fully vaccinated, Hopefully. NO. QUARANTINE,

Similan Islands are closed from 1st May until end of October officially. In reality it however opens somewhere mid-October

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The Best Times to Visit Thailand

By Rick Jordan

When is the best time to visit Thailand?

The best time to visit Thailand is from December to March—though, as with any tropical destination, a short and ridiculously torrential burst of rain is unpredictably possible, even on the sunniest of days.

When’s Thailand’s rainy season?

The time to not go to Thailand is the rainy season, from May to October, when monsoons blow in from all directions. The rain is heavy but sporadic in the first few months, while in the final months of the rainy season, it's more persistent.

When is Thailand’s shoulder season?

Thailand's shoulder season lasts from April to June and then again from September to October. Temperatures will peak country-wide around April, but this also means you don't have to compete for a prime spot on the best beaches in Thailand, and hotel rates will be lower. However, business and ferry services on the smaller islands (especially on the Andaman Sea side) will shut down as the low season approaches. The period from September to October sees more rain but fewer crowds.

What is the cheapest time to visit Thailand?

Unsurprisingly, the cheapest time to visit Thailand coincides with the rainy season. If you’re willing to deal with unpredictable weather, then you could bag a few hotel deals visiting Thailand during this time. We recommend going during the shoulder season.

When is the best time to visit the islands?

East coast islands.

The best Thai islands in the Gulf of Thailand— Koh Samui , Koh Phangan, Koh Tao—tend to get less rain than the rest of the country (even in the rainy season) and are at their best from the end of January until mid-March. January is the freshest month—great for after the Christmas and New Year's Eve party chaos. February is the driest month, one of the sunniest, and the heat is still bearable; March is sunny and dry, too. The European and American summer break crowds hit the Gulf islands (Koh Samui, Koh Pha-Ngan, and Koh Tao) during July/August, so heading here in September usually hits the sweet spot for both crowds and weather.

West coast islands

Over on Thailand's west coast and the Andaman Sea—where you'll find the Thai islands of Phuket , Krabi, Koh Lanta, Koh Phi Phi—the optimum time for a beach holiday is slightly earlier, in December and January, when fresher weather, maximum sunshine, and minimum rainfall combine to create the best climate for a beach holiday.

When is the best time to visit Bangkok?

Bangkok , meanwhile, is stiflingly humid practically all the time (discomfort levels range from 'high' to 'extreme' year-round), but the best time to visit Thailand's capital is in December and January when it is dry and a relatively bearable 87-89ºF average during the day, and 68ºF at night (the coolest Bangkok ever gets). But also consider July and August, when there are great hotel deals to be had—and the rain only lasts for a short while in the afternoon. Avoid the months of April and September. April is unbearably hot and humid; September is hot and torrentially wet.

When is the best time to visit Chiang Mai and the north?

Chiang Mai and the lovely little town of Pai, in Thailand's cooler north, have much more pleasant climates than Bangkok and the south. Go from December to February for lovely sunny days (around 84ºF) and cooler evenings (the temperature dips to 55ºF—and even lower in the highlands, so dig out some warm clothes if you're trekking).

A version of this article originally appeared on Condé Nast Traveller .

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Thailand Weather Year-Round: A Monthly Seasonal Guide

Like its neighboring Southeast Asian countries, the weather in Thailand is mainly known to have a tropical climate, dry and wet (1). However, hot weather and sunny skies are not all there is to know about Thailand’s weather.

With its 3 weather seasons, the different regions across Thailand may have other weather conditions at different times of the year. Whether you’re a sun-worshipping beachgoer or a monsoon-hungry hiker, or anything in between, knowing what the weather is likely to do (at a particular time and place) will help pick out those perfect dates.

And you’ve come to the right place to help you do exactly that. This is a complete guide on the weather in Thailand – from what the data says about each season to the various climates in each region. So, if the weather is a significant factor in planning your next trip to Thailand, then keep reading.

An Overview on Thailand Weather (& It’s Seasons)

The weather in Thailand is under the influence of monsoon winds of season character – northeast monsoon and southwest monsoon.

The southwest monsoon in Thailand starts around May, bringing the warm, moist air stream from the Indian Ocean towards the country. This causes an abundance of rainfall in the country- especially on the windward side of the mountain areas (2). The southwest monsoon is not the only factor that causes rainfalls. The Inter-Tropical Convergence Zone (ITCZ) and tropical cyclones also bring considerable rain to the country (2).

The northeast monsoon starts in October and brings the dry and cool air from the anticyclone in China’s mainland region over the major parts of Thailand (especially to the northern and northeastern areas), with higher latitude. This northeast monsoon also brings mild weather and a lot of rainfall along the eastern coast of southern Thailand.

The southwest monsoon usually starts around mid-May and ends in mid-October. On the other hand, the northeast monsoon typically begins around mid-October and ends in mid-February (2).

There are 3 different Thailand weather seasons; the summer season, the rainy season or monsoon season , and the winter season. To understand the differences between Thailand’s weather year-round, here’s what the weather is like in each season.

When is the Summer Weather in Thailand?

The summer or pre-monsoon season starts in mid-February and ends in mid-May (2). This is also known as the transitional period from the northeast monsoon to the southwest monsoons, as the weather becomes warmer, especially in the upper Thailand region (2).

During the summer season, the temperature in Thailand begins to rise from February, and temperatures tend to peak in April – which is considered the hottest month of the year (2, 3). For most parts of the country, the temperatures usually hover around the mid-30s (3). Due to the inland nature and tropical latitude zone, upper Thailand regions typically experience a long period of warm weather; this includes the central, eastern, northern, and northeastern parts of the country (2).

From March to May (which are the months with the hottest weather in Thailand), the peak temperatures can reach 104 °F (40 °C) or more – except for the coastal areas where the temperatures are toned down by the sea breeze (2).

Summer is also the best time to visit the beaches, as visitors can enjoy sunny weather with clear skies and take a walk along the beach without worrying about rainstorms (3). The famous Songkran Festival or the Thailand Water Festival also takes place in April. So summer is a good time to visit Thailand for those who don’t mind the scorching weather.

For this year (2022), it has been announced by Thailand’s Meteorological Department that the summer season will begin on March 2 nd , 2022, and will last until mid-May. It has been expected that temperatures will increase above 95 °F (35 °C), while occasional tropical rainfalls are also likely (4).

Rainy Season in Thailand (or Southwest Monsoon Season in Bangkok):

The rainy season is known as the low season , as most visitors are not fans of the mix between the boiling temperature and the wet monsoon rains (3). This is the southwest monsoon season in Thailand, as it prevails over the country and brings abundant rainfalls.

The rainy season in Thailand starts from mid-May and can last till mid-October, with the wettest period of the year being August till September (2). The humidity can be pretty high during the rainy season, with dark clouds constant in the sky. Also, according to the annual rainfall pattern, most areas of Thailand generally receive 1,200 – 1,600 mm of rainfalls a year (2). Clear skies are rare to find in this monsoon period, except during June, which can have a few days of clear skies.

In upper Thailand areas, the onset of the southwest monsoon brings intense rainfalls, starting from mid-May till early October. The amount of rainfall usually peaks in August or September, and due to the heavy rain, floods may occur in some areas of Thailand during these months (2).

However, there is an exception on southern Thailand’s east coast; the abundant rain remains in this region until the end of the year, both during the southwest monsoon and at the beginning period of the northeast monsoon.

During the southwest monsoon season in southern Thailand, the west coast receives heavy rainfalls, peaking in September. In contrast, the east coast receives heavy rains peaking in November and through to January of the following year. Thus, the beginning of the northeast monsoon season. The wettest month in this area is considered to be November (2).

Winter Season in Thailand:

The winter season in Thailand starts around mid-October and lasts until mid-February. Even though there is still plenty of rainfall on the east coast of southern Thailand at the start of this period, winter in Thailand is considered the “dry season” (or the mild period of the year). It can get quite cold in upper Thailand during December and January (2).

During this season, the general weather condition is still sunny, with generally clear skies and some ‘cool’ mornings with temperatures around 68 °F (20 °C). Unlike in the summer season, there is a blowing wind during the winter, especially in the early mornings and evenings. It is more of a cool breeze than the hot and dry air during the summer (3).

The weather during the winter season is considered to have the perfect balance of the weather conditions, as the other 2 seasons can be either too hot or too humid. In Bangkok and the other central Thailand regions, the weather is usually warm and dry, with an average temperature of 27 °F (25 °C).

The beaches remain hot even in the winter. However, they will be extremely dry as the monsoon rainfalls have already been and gone in the months previous. For trekkers and people staying in the highlands in the northern regions of Thailand, one can expect a hot and dry type of weather during the day but slightly cooler temperatures at night during December (5).

The winter season in Thailand is considered the best season to travel to Thailand. The chances of getting rained on are minimal, and day and night temperatures are comfortable enough in most parts of the country – making this time of the year ideal for all types of travelers.

Weather Climates by Different Regions in Thailand

Thailand covers 512,000 square kilometers (or 198,000 square miles) of land, divided by four geographical regions.

The central region is the home to Thailand’s capital city, Bangkok, and the northernmost part is filled with mountains and forests. The northeast region consists of flatlands, while the southern region is the peninsula area with coastlines on both sides and hundreds of small islands (6).

As each region has different geographical structures, Thailand’s climate in each region is also different. Below are the different climates in Thailand, according to each area.

Weather in Bangkok:

The capital city is located in the central region of Thailand, and humidity is pretty consistent in this region all year round. All 3 of Thailand’s seasons can be found here, as the seasons are more evenly spaced apart than they are in the other regions.

February to June is considered the hottest period in this region; the temperature rises in February, and the heat becomes intense between March and mid-May. During this period, the highs can reach 99-100 °F (37-38 °C) while the night temperatures continue to be hot. More often than not, it remains around 82-84 °F (28-29 °C) at night (7).

Bangkok’s monsoon season arrives around mid-May, and with that, the temperature starts to go down. The weather is often cloudy during this season, and humidity also increases. The rainfalls – which are in the forms of rain showers and thunderstorms, bring a bit of relief to this humid weather. Sometimes the downpours can be intense.

The rainiest months in Bangkok are September and October, which are the end of its monsoon season. The rainfalls during these months tend to be around 345 mm and 240 mm each month, respectively (7). In the dry season (from December to April), the amount of sunshine in Bangkok is excellent, with a clear sky on most days.

Bangkok’s weather is not as hot as in the north-central inland regions. However, it’s more humid due to the city’s proximity to the sea. Caused by a phenomenon known as the ‘urban heat island effect,’ the heat is trapped within the city, making the weather in Bangkok humid most of the time (7).

Weather in Pattaya:

Pattaya is a beach town, and the ocean winds help reduce the heat in this famous tourist destination. The weather climate in Pattaya is similar to that of Bangkok. But as it is located on a stretch of coast, Pattaya is relatively sheltered from the summer rains (which occur from June to August), with an average of about 100 mm rainfalls per month (7).

During this hot and muggy season, there is not much sun. Tropical storms and typhoons can sometimes even affect the area. Therefore, visiting Pattaya from June to August is not so tempting.

The rainiest months in Pattaya are in May, September, and October, the beginning and the end of the wet season. The usual weather climate in Pattaya is that it doesn’t get too much rain, and it doesn’t get too uncomfortably hot as well. The average highs are around 88 °F (31 °C), and the lows are around 72 °F (22 °C) (8).

The best time for Pattaya’s weather is believed to be from December to February. March and April also have dry weather and sunny days, but the weather in these months can be a bit hot for visitors to enjoy the beach all day (7). 

Weather in Chiang Mai:

Known as the ‘cool weather capital,’ the weather in Chiang Mai is considered to be far more agreeable when compared to the sweaty heat of Bangkok (8).

In December and January, the night temperature in the northern cities like Chiang Mai can drop to around 41 °F (5 °C), as the cold air masses from China arrives in Thailand. In some cases, the temperature might reach even lower.

By February, the daytime temperature starts to increase and often reaches around 91-93 °F (33-34 °C) – with daily highs hitting 104 °F (40 °C) in some cases (7, 8). Then, the temperature rises to 95-99 °F (35-37 °C) between March and May – with peak temperatures even reaching above 104 °F (40 °C) (7).

The heat will continue through to June. Even though there is always humidity in Chiang Mai’s atmosphere during this period, the rainfalls won’t happen until the end of May (8). In the Chaing Mai region, the monsoon rains arrive in mid-May and last till mid-October.

The annual precipitation in the inland plain area of Chiang Mai is usually between 1,000 and 1,500 millimeters. The rainfalls happen with a similar pattern – rarely seen in mid-November to April but then heavy downpours during the monsoon season. These rainfalls reach their peak in August and September, which are the end of the monsoon period.

The sunshine is very good during the dry season in Chiang Mai, from December to April, as the clear skies prevail.

One thing to note about Chiang Mai is that due to the ‘slash-and-burn’ farming practices, a smoky haze may occur very frequently during the summer until July, which covers up the beautiful mountain sceneries, can also clog up your airways (8).

Weather in Phuket:

The most well-known island province in Thailand, the weather in Phuket is pretty much warm all year round. But there are months when this beautiful island is met with some wet weather (8).

The temperatures in Phuket during the winter season are a little higher compared to the east side, as the wind blows from the mainland, or rather, from the peninsula’s interior (7). April to May, and September to October, are considered the hottest times of the whole year in Phuket. The average temperatures are around 84 °F (29 °C), with a low of 73 °F (23 °C) (8).

However, this hot weather does not mean that there won’t be any rain during these months. Summer in Phuket can be stormy, as the monsoon hits directly from the sea to the coast (7). The rain in Phuket starts a bit earlier than in other areas of Thailand, as the majority of the rainfalls happen at the beginning of the monsoon season and sometimes around early May.

May to October is the monsoon season in Phuket, and one can expect to see between 18 to 23 days of rainfalls during a month. The average rainfall is up to 400 mm per month (8). Usually, September and October are the wettest months of the year. However, it is rare for the island to have more than two fully rainy days back to back. Often, rainfalls happen through the night, and by the morning, it is dry (8). From December to March, there is little rain in Phuket (7).

Though the temperatures in Phuket do not vary very much throughout the year, January is the month with the coolest average temperature – with highs around 90 °F (32 °C) and the lows being 72 °F (22 °C). November to February is considered the ideal time to visit this island for most travelers. The temperatures during these months are just a bit cooler, and the rainfalls are also scarce (8).

As the climate in Thailand is different according to seasons and regions, it is essential to check the weather beforehand so that your holiday plans won’t get disrupted. And generally speaking, Thailand is a lovely vacation destination all year round due to its generally warm weather.

However, the best time to visit Thailand can vary for different people. Therefore, to enjoy your holiday to the fullest, be sure to check the weather during the time of year and region you are visiting in Thailand . Lastly, here is a FAQ compiled for you to check the Thailand climate for each month at a quick glance!

Like always, if you want to discover more about Thailand, stay guided with ThaiGuider . You might learn something you never knew about this unique country.

FAQ: Weather in Thailand by Month (Year Round)

1. thailand weather in january.

January in Thailand is one of the best and most popular months of the year to visit the country, as the weather conditions are favorable throughout the whole country. In January, there is little chance of rain, and all the west coast beaches are also likely to be covered by sunshine during this month – except for Koh Samui , as it often sees high levels of rain during this time of the year (9).

Average Temperature – 91 °F (32.7 °C) (10)

Rainfall – 12.7 mm (0.5 inches) (10)

2. Thailand Weather in February         

The average temperature is around 22 to 25 degrees Celsius during February, making February an ideal month for outdoor activities (11). However, starting from February or mid-February, the temperature begins to rise. Towards the start of February, a few rain showers are also expected on the east coast of Thailand (12).

Average Temperature – 92 °F (33.3 °C) (10)

Rainfall – 20.32 mm (0.8 inches) (10)

3. Thailand Weather in March

Starting from March, temperatures will begin to increase throughout the country as the daytime temperatures peak at 35 degrees Celsius in the northern region of Thailand. The temperatures in the southern areas also start to rise with plenty of sunshine in the area (13).

Average Temperature – 94 °F (34.4 °C) (10)

Rainfall – 43.18 mm (1.7 inches) (10)

4. Thailand Weather in April

April is considered the hottest time of the year for Thailand, with average temperatures reaching 30 degrees Celsius frequently (14), with average temperatures for the highs being 35 degrees Celsius (10). Rainfalls are more frequent in April than in the first 3 months.

Average Temperature – 96 °F (35.6 °C) (10)

Rainfall – 91.44 mm (3.6 inches) (10)

5. Thailand Weather in May

Throughout the country, there is a welcome drop in temperature during May, even though the highs being 33-34 degrees Celsius is not unheard of (15). Most regions in Thailand also experience a noticeable increase in rainfalls, although it is not in all parts of the country (14).

Rainfall – 248.92 mm (9.8 inches) (10)

6. Thailand Weather in June

In June, the temperatures remain high, with an average of 29-31 degrees Celsius in many parts of Thailand (16). Any rain in June across much of Thailand is likely to be short downpours (16).

Average Temperature – 93 °F (33.9 °C) (10)

Rainfall – 157.48 mm (6.2 inches) (10)

7. Thailand Weather in July

Temperatures begin to drop a little in July, as the wind and rainfalls become more common as this month goes by (17). As the month continues, rainfalls increase, with short daily showers changing into more prolonged rains (18).

Rainfall – 175.26 mm (6.9 inches) (10)

8. Thailand Weather in August

As the rain is widespread across Thailand in August, it reaches its peak – especially in the north of Thailand, where heavy rainfalls are frequent (19). The temperatures also continue to drop slightly in August, although the humidity remains at a high level (20).

Rainfall – 218.44 mm (8.6 inches) (10)                                                                          

9. Thailand Weather in September

September is considered the wettest month of the year, as the rainfalls continue throughout the country. Temperatures continue to go down gradually throughout September, and thunderstorms also happen this month due to the humidity level reaching its peak (21).

Average Temperature – 91 °F (32.7 °C) (10)

Rainfall – 335.28 mm (13.2 inches) (10)

10. Thailand Weather in October

Despite rainfalls continuing at the start of October, the temperature begins to drop, and so does the humidity level (22). In Chiang Mai, Chiang Rai, and northern Thailand areas, October is considered the start of the winter season as the temperature decline to a cooler level by the end of this month (23).

Rainfall – 292.10 mm (11.5 inches) (10)

11. Thailand Weather in November

By November, the rain becomes uncommon in many areas of Thailand as the sun returns to the country’s west coast, making it preferable to go to the beaches like Phuket and Krabi. However, there can still be high levels of rainfall in Koh Samui around this time. Temperatures also reach the ‘cool’ level by Thailand standard, especially in the early mornings and late evenings in the northern part of Thailand (24).

Average Temperature – 90 °F (32.2 °C) (10)

Rainfall – 50.80 mm (2.0 inches) (10)

12. Thailand Weather in December

December is known as the peak travel season as the weather for Thailand in December is comfortable for almost every part of the country. One can expect minimal rainfalls, plenty of sunshine, and favorable temperatures when visiting Thailand this month (25).

Average Temperature – 89 °F (31.7 °C) (10) (10)

Rainfall – 7.62 mm (0.3 inches) (10)

1. Selective Asia. Thailand: Weather & When To Go. Selective Asia. [Online] [Cited: March 1, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/.

2. Climatological Group, Meteorological Development Bureau, Meteorological Department. The Climate of Thailand. Thai Meteorological Department. [Online] 2015. [Cited: March 1, 2022.] https://www.tmd.go.th/en/archive/thailand_climate.pdf.

3. Pete. Travel Guide: What Are Thailand’s 3 Seasons And When To Visit In 2022? Thaiger. [Online] February 8, 2022. https://thethaiger.com/travel/guides/travel-guide-what-are-thailands-3-seasons-and-when-to-visit-in-2022/.

4. Khaosod English. Khaosod English. Facebook. [Online] March 1, 2022. https://www.facebook.com/536126593072944/posts/5275368279148728/?d=n.

5. Becky. Best Time To Visit Thailand: Weather And Festivals Guide. Experience Travel. [Online] [Cited: March 2, 2022.] https://www.experiencetravelgroup.com/weather/when-to-go-thailand/.

6. Nam, Suzanne. Geography And Climate Of Thailand. Hachette Book Group. [Online] [Cited: March 2, 2022.] https://www.hachettebookgroup.com/travel/planning/geography-climate-thailand/.

7. Climates To Travel. Climate – Thailand. Climates To Travel. [Online] [Cited: March 2, 2022.] https://www.climatestotravel.com/climate/thailand/.

8. Peter. The Ultimate Thailand Weather Guide: Seasons, Regions, Rainfall & Temperature. The Thailand Life. [Online] October 8, 2019. https://www.thethailandlife.com/weather-in-thailand/.

9. Audley Travel. When Is The Best Time To Visit Thailand? Audley Travel. [Online] [Cited: March 3, 2022.] https://www.audleytravel.com/thailand/best-time-to-visit#jan/.

10. Nam, Suzanne. Weather In Thailand: Climate, Seasons, And Average Monthly Temperature. TripSavvy. [Online] December 4, 2020. https://www.tripsavvy.com/best-times-to-travel-in-thailand-1658236/.

11. Selective Asia. Thailand Weather & When To Go: February. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/february/.

12. Audley Travel. When Is The Best Time To Visit Thailand? Audley Travel. [Online] [Cited: March 3, 2022.] https://www.audleytravel.com/thailand/best-time-to-visit#feb/.

13. Selective Asia. Thailand Weather & When To Go: March. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/march/.

14. Selective Asia. Thailand Weather & When To Go: April. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/may./

15. Selective Asia. Thailand Weather & When To Go: April. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/may/.

16. Selective Asia. Thailand Weather & When To Go: May. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/june/.

17. Audley Travel. When Is The Best Time To Visit Thailand? Audley Travel. [Online] [Cited: March 3, 2022.] https://www.audleytravel.com/thailand/best-time-to-visit#jul/.

18. Selective Asia. Thailand Weather & When To Go: July. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/july/.

19. Audley Travel. When Is The Best Time To Visit Thailand? Audley Travel. [Online] [Cited: March 3, 2022.] https://www.audleytravel.com/thailand/best-time-to-visit#aug/.

20. Selective Asia. Thailand Weather & When To Go: August. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/august/.

21. Selective Asia. Thailand Weather & When To Go: September. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/september/.

22. Audley Travel. When Is The Best Time To Visit Thailand? Audley Travel. [Online] [Cited: March 3, 2022.] https://www.audleytravel.com/thailand/best-time-to-visit#oct/.

23. Selective Asia. Thailand Weather & When To Go: October. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/october/.

24. Audley Travel. When Is The Best Time To Visit Thailand? Audley Travel. [Online] [Cited: March 3, 2022.] https://www.audleytravel.com/thailand/best-time-to-visit#nov/.

25. Selective Asia. Thailand Weather & When To Go: December. Selective Asia. [Online] [Cited: March 3, 2022.] https://www.selectiveasia.com/thailand-holidays/weather/december/.

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Thailand Climate & Weather

Thailand is located between vast areas of land and water, so it is impacted by both the summer and the winter monsoons. As a result, Thailand weather consists of six months of rainfalls during the wet season, three months of dry and cooling breezes during the winter, and three months of heat during the summer. The average temperature of Thailand ranges from 18 to 38°C.

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When is the best time to visit Thailand?

• Month-by-month

The best time to visit Thailand is during the cool and dry season between November and early April, when temperatures range from 29°C to 34°C. However, the climate varies throughout the country and you can visit all year round.

In the south, the climate differs between the eastern and western coasts. The west coast is more favourable during the winter months, when diving and snorkelling will be at their best.

The weather on the east coast of Thailand is good for most of the year. Rainfall there is lowest in January and February, and highest in November.

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Month-by-month guide for travelling in Thailand

Visiting Thailand in January

The weather is good throughout the country at this time of year. There is little chance of rain, while cooler temperatures in the north make conditions more comfortable and all the west coast beaches are likely to be bathed in sunshine. Perhaps the only exception being Koh Samui, which often sees high levels of rainfall at this time of year.

Events & Festivals

• Chinese New Year Festival (date varies): While this isn't a public holiday, it is celebrated across the country; particularly in Bangkok's Chinatown, which turns red and hosts exciting dragon parades, firecrackers and dancing in the streets.

Visiting Thailand in February

A few showers are expected on Thailand's east coast toward the start of the month, but the rest of the country remains hot and dry. Even the normally cool early mornings in the north begin to heat up.

• Chiang Mai Flower Festival (first weekend of February): A three-day festival held at the end of the 'cool season', featuring a parade and colourful displays of chrysanthemums and the Damask Rose — a variety found only in Chiang Mai.

Visiting Thailand in March

Fine weather should be expected throughout Thailand in March, with temperatures rising into the mid 30°Cs and the colder weather in the north disappearing. This means that you can go anywhere in the country to enjoy sun-kissed beaches.

Visiting Thailand in April

More excellent weather during April and the visitor numbers continue to rise. Be sure to book your accommodation far in advance to get the best choice of hotels. Travelling over Songkran (Thai New Year) means you can have great fun joining in the celebrations, but it is likely to be busier.

• Songkran (13th to 15th April): This is the traditional New Year's Day in Thailand. Scented water is poured over people and thrown in the street to symbolise the washing away of sins and bad luck.

Visiting Thailand in May

A great month to visit Thailand as prices lower following the peak season, meaning that you may be able to take advantage of a shoulder season promotion. For the majority of the month very little rain is expected, but for guaranteed sunshine on the beach, stick to the east coast.

Visiting Thailand in June

June is a good time to visit, allowing you to catch the last of the dry weather and avoid the crowds seen during the European school holidays. Thailand is bathed in sunshine at this time of year, and there are wonderful opportunities to grab a shoulder season bargain.

Visiting Thailand in July

Temperatures start to drop a little as wind and rain becomes more common toward the end of the month. The sun is still out on the east coast beaches, but islands such as Koh Samui tend to get busy over the school holidays. The beginning of the month is best.

Visiting Thailand in August

The rain is widespread across Thailand now; especially in the north of the country where heavy rainfall is common. Beach options start to dwindle, with Hua Hin and Koh Samui being the best places to head; although you may still experience a few showers.

Visiting Thailand in September

September is usually the wettest month of the year, so it's not ideal for beach goers. However, those seeking a low season bargain and no crowds can still enjoy a worthwhile exploration at this time of year.

Visiting Thailand in October

Rains continue throughout the beginning of October and temperatures begin to drop. However, the more comfortable cooler temperatures and lower humidity, along with less chance of rain at the end of the month, make October a good month to travel.

• Vegetarian Festival (October): This nine-day festival celebrates the Chinese belief that abstinence from meat during the ninth lunar month of the Chinese calendar will obtain good health and peace of mind. Experience this festival in Phuket.

Visiting Thailand in November

The sun returns to Thailand's west coast and beach goers begin to flock to Khao Lak , Phuket and Krabi once again. Perhaps the only exception being Koh Samui , which often sees high levels of rainfall at this time of year. If you visit at the start of the month you can beat the crowds. Early mornings and late evenings in northern Thailand begin to cool as winter approaches.

• Loy Krathong (November): A festival predominantly celebrated by southwestern Thai cultures. Decorated baskets are hand-made using banana tree trunks, bread or styrofoam and floated along a river as locals make a wish.

Visiting Thailand in December

Thailand's west coast beaches prepare for the Christmas rush and it's best to book far in advance to secure your preferred option. With good weather all round, it's peak time to visit Thailand. Perhaps the only exception being Koh Samui, which often sees high levels of rainfall at this time of year. We recommend going at the beginning of the month to avoid the hotel surcharges over Christmas.

Thailand Climate Guide

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Tips for visiting Thailand in October

Thailand weather & when to go: October

Thailand october weather overview.

October is a month of change, although when that change will actually arrive is anyone’s guess! The rains should start to recede and the humidity levels fall as the month progresses. Temperatures are also declining as October marks the start of ‘winter’ in Chiang Rai, Chiang Mai and northern Thailand (avg temp: 24-27°C).

Unfollow the herd - travel in Thailand during October and enjoy fewer crowds, better availability, and help to spread the economic benefits of tourism.

Thailand weather & when to go

Pick a month below, october’s weather in detail.

When it comes to Thailand’s beaches, the islands of Koh Chang and Koh Kood are experiencing the wettest conditions, although rainfall is significantly less than in previous months. Further south, average temperatures are a comfortable 25-27°C, but rain levels are still high on both sides of the peninsula. However, drier days and blue skies for Phuket, Khao Lak and Krabi on the west coast, are just round the corner.

October is one of the wettest months in Khao Sok National Park, so take suitable waterproof clothing if you plan to visit this month. Don’t be put off by the rain: average temperatures during the month are a comfortable 25-26°C, the rainforest is green & lush, and there is more chance of spotting wildlife.  

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Thailand reels under heatwave as some regions hit record high temperatures of 44.2 deg C

BANGKOK – Thailand is reeling under a severe heatwave with temperatures soaring to record highs in some areas and the authorities warned of harsher weather in the coming days.

More than three dozen districts across Thailand’s 77 provinces have seen record temperatures in April, generally the hottest month of the year, with new highs beating records held as far back as 1958, according to data from the Thai Meteorological Department.

Temperatures have topped 40 deg C in 26 provinces in April, according to the agency.

The northern province of Lampang has seen the highest temperature so far in 2024 at 44.2 deg C, just shy of the highest temperature ever recorded in Thailand – 44.6 deg C – that was last seen in 2016 and 2023. 

Thailand’s power usage surged to another record of 36,699MW on April 29 amid soaring temperatures, according to data on the state energy regulator’s website. That was the third time demand hit a new peak in about one week.

The weather bureau advised people to avoid outdoor activities for a long period of time with maximum temperatures in most regions expected to top 40 deg C on April 30.

Deaths related to heat have risen to about 30 nationwide in 2023, Thailand’s Ministry of Public Health said last week. 

Bangkok’s heat index – a measure of how hot it feels like when humidity is taken into account – was listed as above 52 deg C and “very dangerous” on April 30, according to a Facebook post by the metropolitan administration. BLOOMBERG

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Thailand reels under heatwave with temperatures as high as 44.2 deg C

Tuesday, 30 Apr 2024

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A man carries a fan through a market during a heatwave in Bangkok, Thailand, on April 28, 2024. - Bloomberg

BANGKOK: Thailand is reeling under the grip of a severe heat wave with temperatures soaring to record highs in some areas and authorities warned of harsher weather in the coming days.

More than three dozen districts across Thailand’s 77 provinces have seen record temperatures in April, generally the hottest month of the year, with new highs beating records held as far back as 1958, according to data from the Thai Meteorological Department.

Temperatures have topped 40 deg C (104F) in 26 provinces this month, according to the agency. The northern province of Lampang has seen the highest temperature so far this year at 44.2C, just shy of the highest temperature ever recorded in Thailand - 44.6 deg C - that was last seen in 2016 and 2023.

Thailand’s power usage surged to another record of 36,699 megawatts on Monday amid soaring temperatures, according to data on the state energy regulator’s website. That was the third time demand hit a new peak in about one week.

The weather bureau advised people to avoid outdoor activities for a long period of time with maximum temperatures in most regions expected to top 40 deg C on Tuesday. Deaths related to heat have risen to about 30 nationwide this year, the Ministry of Public Health said last week.

Bangkok’s heat index - a measure of how hot it feels like when humidity is taken into account - was listed as above 52 deg C and "very dangerous” on Tuesday, according to a Facebook post by the metropolitan administration. - Bloomberg

Tags / Keywords: Thailand , heatwave

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Thailand Weather in July 2024: Tips for a Family Vacation

Thailand weather in july overview.

In July, Thailand's tropical climate ushers in the hot and humid monsoon season . Average temperatures slightly drop to 28-29°C, accompanied by increased rainfall, occasionally leading to prolonged showers, especially as August approaches.

This period is generally considered the low season for travel , resulting in fewer crowds and a more serene atmosphere.

• Average temperature range: 27–32°C (80–89°F)
• Rainfall: 170 mm (7 inches)
• Rainy days: 17-22
• Sunny days: 5

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Thailand's Regional Weather in July

In Bangkok and Central Thailand: The average temperature is about 29°C (85°F). Due to the monsoon winds, the weather can change rapidly even within the span of a day.

In northern Thailand, including Chiang Mai: The north experiences moderate rainfall during July, but because of its mountainous terrain and inland location, it is cooler than other regions of Thailand.

The southern islands: Islands such as Ko Samui remain favorable, despite occasional rain and wind. Conversely, areas like Ko Chang and the Andaman coast, including Phuket Island, experience notably heavier rainfall during this period.

Get more ideas on planning a family trip to Thailand .

The Best Places to Visit in Thailand in July

In July, despite the rainy season in many parts of Thailand, there are still several captivating places to visit. Here are some top destinations:

• Chiang Mai: Explore the cultural richness of northern Thailand. While it's the rainy season, the lush landscapes and cultural festivals, such as Buddhist celebrations, can offer a unique experience.
• Kanchanaburi: Known for the Erawan National Park and the Death Railway, Kanchanaburi's greenery is at its peak during July. The rain enhances the beauty of waterfalls and the overall natural scenery.
• Pai: A laid-back town in the mountains of northern Thailand, Pai offers a tranquil atmosphere amidst stunning landscapes. The rain can add a refreshing touch to the surroundings.
• Ayutthaya: Explore the historical ruins of the ancient capital. The rain can bring a unique charm to the historical monuments, and the crowds are usually thinner during this period.
• Koh Samui: While the islands generally experience more rain in July, Koh Samui on the east coast tends to have a drier climate compared to other popular islands. Enjoy the beautiful beaches and cultural sites.
• Bangkok: The bustling capital city offers a vibrant urban experience, even during the rainy season. Explore the city's temples, museums, and shopping districts, and indulge in the diverse culinary scene. While outdoor activities may be affected by occasional rain, Bangkok's indoor attractions provide ample opportunities for cultural exploration.

 More Helpful Information:

• How to Plan Your First Trip to Thailand — 7 Easy Steps 
• Check the sample itineraries for Thailand tours:  10 days , 12 days , 14 days , and 21 days >>>

Crowding and Costs in July

Few people choose July to travel to Thailand because of its heat and rain. Discounted rates can often be seen in many branded hotels and restaurants. The tourist sites and beaches are generally quiet and empty, which makes it a good time to go to relax, though you may need to retreat inside when afternoon/evening downpours come.

Clothes to Wear in July

Light shirts and cool clothes are good attire for Thailand in July. Shorts, skirts, T-shirts, light trousers, and caps are recommended to pack for your trip to Thailand in July.

In most places, there are more than 20 days with some rain in July. So, umbrellas, light raincoats, and rubber boots or sandals are probably going to be needed during your trip in July.

Traveling to Thailand in July? Check out These Great Itineraries

These are some sample itineraries for your inspiration and they can be customized based on your interests and requirements. 

Monthly Weather and Travel Information for Thailand

Learn about the weather in Thailand for 12 months and find out the best places to visit each month.

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