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The Best Time to Cruise Alaska for Wildlife, Northern Lights, and Fewer Crowds

By Susan B. Barnes

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The best time to cruise Alaska isn't obvious—until you're quietly sailing along its calm waters under a cloudless, late-spring sky. It was on one such day that someone on board spotted a whale breaching. And then again. And again. Within minutes it seemed everyone on board had gathered at the railings on deck to watch. The captain of the ship nimbly repositioned us, giving both the port and starboard sides prime viewing, at a safe and respectful distance from the animals. With binoculars, cameras, and phones at the ready, the passengers and crew aboard  UnCruise Adventures'  86-guest  S.S. Legacy  settled in for what turned out to be an hour-long private show by a juvenile humpback who had migrated from Hawaii to spend the summer in the nutrient-rich Alaskan waters.

This is but one of the incredible experiences that may be had when visiting Alaska in the “secret season”—springtime. Not only are the flowers and plant life awakening from their wintertime slumber, so is its wildlife. Though the state’s more temperate summer season has long attracted its largest numbers of visitors, an increasing number of in-the-know travelers are looking to spring as the best time to cruise to Alaska , when they can count on fewer crowds—and increased savings—without sacrificing their chance to take advantage of the state’s landscape and  wildlife sightings .

On that same late-April voyage with UnCruise, the  Northern Lights  danced through the sky on night one, and through the week we spotted grizzly bear mamas and their cubs skirting the coastline; bald eagles soaring overhead; humpback whales and orcas breaking the water’s surface to breathe; puffins, seals, and sea lions bobbing in the water and laying out on rocks—even a wolf on the shoreline, feasting on a fresh kill. (Our captain said he had seen a wolf in Alaska only twice in his 30-year career.)

We sailed roundtrip from Juneau, and while I’ve visited the capital city during the busy summer months, I found the restaurants, bars, and shops much less crowded, reliably filled with locals for the most part. On the water, we rarely passed any other ships or boats, aside from fishermen out for their catches.

According to  Travel Alaska , cruising is the most popular way to explore the state, and Cruise Lines International Association Alaska predicts that 1.64 million cruise line passengers will sail to and within Alaska in 2024.

But when is really the best time to sail Alaska? We’ve broken the seasons down for you, including the highlights of each, as well as the best cruise lines and cruise ships to consider so you can make your bucket list dreams come true.

Celebrity Cruises’ Celebrity Edge sets sail for the first time in Alaska this year.

April and May

If your schedule allows, not only does sailing Alaska in April and May afford the possibilities of glimpsing the Northern Lights and seeing wildlife emerge from their winter hibernation, it’s a more affordable and less crowded time to cruise, too. April and May are also the driest months in Alaska, so the chances of rain are slim.

Norwegian Cruise Line kicks off the 2024 Alaska cruise season when Norwegian Bliss sets sail on a weeklong, roundtrip itinerary from Seattle; she will be the only ship sailing in Alaska the first two weeks of spring. Balcony cabins are still available on the season’s inaugural sailing at a discounted fare of $1,029 per person .

Smaller ships like those that comprise UnCruise Adventures ’ and Alaska Dream Cruises ’ fleets can maneuver closer to the coastline for better views of bears rambling along the beaches and on-land excursions without another soul around. Uncruise’s 12-night “Inside Passage” itinerary departs April 15 with rates starting at $6,300 per person , and Alaska Dream Cruises’ seven-night “Last Frontier Adventure” has starting rates from $3,995 per person .

June to August

Warmer temperatures, an average of 17 hours of daylight, and schools’ summer vacations all make Alaska a popular destination for cruising in June, July, and August. Expect crowded ports and more ships out on the water, but that’s not to say it’s not a good time to set sail: bears are still active, as are whales and native bird life.

Holland America Line, which has sailed in Alaska for 75 years, offers 50 itineraries throughout June, July, and August, including the new 28-day Alaska Arctic Circle Solstice itinerary that departs June 9 from Seattle; verandah staterooms start at $7,259 per person . Family favorite Disney Cruise Line offers 13 itineraries over the summer, including a seven-night itinerary from $3,467 per person .

Not only is school back in session in September, which means fewer crowds at ports, but the chances of seeing the Northern Lights return, especially if combining your cruise with a land tour that takes you further north into Alaska. Fall is also mating season for wildlife, so expect to see some friskiness.

Celebrity Cruises’ Celebrity Edge sets sail for the first time in Alaska this year and has four six- and seven-night itineraries in September, starting at $599 per person . For a cruise-tour option, Princess ’ 12-day Denali Explorer itinerary blends five days on land with a weeklong cruise with mini-suite rates from $4,008 per person .

The Alaska cruise season winds down in October, with only a few ships setting sail. Just as in April and May, you’ll likely have the water to yourself, and even fewer people in the ports you call upon. Along with cooler weather, you’ll also find lower fares that will please your bank account.

Just as Norwegian Cruise Line kicks off the 2024 Alaska cruise season in April, it’s the last cruise line to set sail in the state, and the only one to sail in October. The seven- and nine-day itineraries sail roundtrip from Seattle, and a recent search found fares more than 80% off published fares, starting at $499 per person .

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The best time to cruise to alaska in 2024.

Plan your bucket list adventure to explore the extraordinary beauty of the 49th state.

The Best Time to Cruise to Alaska

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Alaska's astounding beauty and vast wilderness are unlike any other destination in the U.S. – and even in the world. While you can plan land-based trips to the state, many of Alaska's majestic snowcapped mountains, pristine forests, glacial waterways and abundant wildlife are in remote locations, only reachable by plane or by boat. That's just one of the many reasons why Alaska is one of the most popular cruise destinations in the world.

If you're ready to stop dreaming and start planning a once-in-a-lifetime adventure to The Great Land, here are tips on the best times to cruise Alaska.

Best Overall Time: Shoulder Seasons

Best time for warmer weather, best time for wildlife viewing, best time for salmon fishing, best time for the northern lights, best time for shore excursions.

If you want to score a deal and have fewer crowds, travel during the shoulder seasons: May and September. In these months, cruise fares are typically lower and ships are not as full, offering more cabin availability. However, with changes in the global climate bringing more moderate temperatures to Alaska, and the cruise season now extending into April and October, cruisers can also expect to find deals in April and October. There will be fewer sailings to choose from, but you may find lower pricing and avoid the peak-season crowds on the ship and in the ports.

In addition, select shore excursions may be available at a discount in the spring and fall. If you're planning on exploring Alaska on your own before or after your cruise, you'll also find cheaper hotel rates at the beginning or end of the cruise season.

Alaska's weather can change dramatically, especially the further north you go, no matter the month or season. While the weather may not be as predictable in April as in the middle of summer, Alaska can be beautiful in springtime with temperatures in the mid-40s, according to Tyler Hickman, senior vice president of Icy Strait Point, an Alaska Native-owned port in Hoonah and a port of call in Southeast Alaska. Hickman says there are long stretches of sunny days and crisp, clear evenings, offering the opportunity for late-season viewing of the northern lights . He also adds that April is one of the favorite times of year for local Alaskans.

If you're interested in cruising to Alaska in April, Norwegian Cruise Line has a few options, including weekly sailings on Norwegian Bliss beginning April 6. The line also offers Alaska itineraries through the end of October. Other lines sailing the extended season in Alaska in late April include Princess Cruises , Holland America Line , Royal Caribbean International , Carnival Cruise Line , UnCruise Adventures and Lindblad Expeditions.

If you prefer to travel in the fall, early October temperatures are usually in the 50s, while the end of the month brings snow in the higher elevations. The days are longer and there are no crowds, so it may be an ideal time to visit if you're not interested in the summer outdoor experiences. Norwegian, Holland America and Seabourn Cruise Line offer sailings in October.

Read: The Best Alaska Cruise Deals

If you'd prefer warmer weather for your cruise, the summer season in Alaska runs from mid-May to mid-September. During that period, daytime temperatures typically range from 60 to 80 degrees, though they can drop into the 40s overnight. You can expect to have between 16 to 24 hours of daylight in the warmer season. May is considered the driest month, with around a 25% chance of precipitation, but the rain becomes more frequent throughout the summer.

Alaska.org, a website run by local Alaskans that provides travel information and recommendations, advises that the best time to visit in summer is from June 15 to July 15. This 30-day period is regarded as the peak season for warm, dry weather – and it's the perfect time for outdoor activities such as wildlife viewing, fishing and hiking. If you want to experience the most "midnight sun," plan to cruise a few weeks before or after the summer solstice – the longest day of the year – which falls on June 20 in 2024.

Come September, the days are generally shorter, rainier and cooler – but not always. You might get lucky with some unseasonably warm days amid the beautiful fall foliage ; as a bonus, September also means no bugs and fewer crowds.

If you have school-age children, you'll probably need to travel midsummer, during peak season. However, if you're flexible on dates, there's really no bad time to visit this magical destination. Mountain peaks shrouded in clouds or misty days cruising Glacier Bay National Park and Preserve in late April are as beautiful as sunny days hiking through Tongass National Forest or whale watching on an excursion out of Icy Strait Point in July.

Read: The Best Places to Visit in Alaska

According to Glacier Bay National Park and Preserve, one of the top destinations on the Inside Passage itinerary, wildlife viewing is possible year-round, especially if you have your binoculars at hand. When you're not watching for turquoise ice calving in the bay from the glaciers, you might see humpback whales as long as 65 feet or black and brown bears up to 10 feet tall – as well as orcas, harbor and Dall's porpoises, sea otters, harbor seals, mountain goats, sea lions, seabirds, and bald eagles soaring overhead. And that's just what you can view from the ship.

During cruises through the park, rangers board the ships to offer commentary and information about the marine and terrestrial wildlife. They also help spot whales or other animals along the way. One of the highlights while cruising slowly through the park is to go outside on the bow of the ship – or even out onto your veranda – to listen to the incredible silence of this otherworldly place. You may hear nothing at all, or perhaps you'll be treated to the sounds of birds in the distance or the swoosh from a whale's blowhole before it dives down below the water's surface.

It's possible to view certain animals and marine life throughout the year, according to Hickman. "Whale sightings are consistent from May through September, with fewer occurring in April and October as they migrate from or to Hawaii for the winter," he says, adding: "Even on a foggy day when you can't see the whales, you can still hear them and feel their presence – and that's almost as incredible as seeing them from a ship or along the coastline."

If you're interested in spotting brown bears, here is Hickman's advice: "Bear sightings in the spring will depend on the snowpack and when they are leaving hibernation. This year we had very good bear viewing along the Spasski River starting in May when the coastal brown bears emerged from hibernation."

He adds, "They feed on the grass of the valley and eat skunk cabbage roots in May and early June. As the berries start to emerge in June, it holds many of the same bears, and as we get into mid-July, the salmon start heading upstream. There is a constant food source from May through September at Spasski. Many of the other bear viewing areas do not have the same features we have, and it leads to people thinking that bears are only around when fish are in the rivers."

Chichagof Island – the location of Hoonah and Icy Strait Point – was given the nickname "Bear Island" by National Geographic. The island boasts one to two brown bears per square mile, making it one of the largest brown bear populations in the world. Hickman says you're nearly guaranteed to see bears on one of Icy Strait Point's bear-watching tours. Icy Point Strait also offers whale watching adventures and other treks into the wilderness.

Alaska.org points to May through September as the best time for wildlife viewing, though you can spot some animals year-round, like moose or orcas. The website also advises that fly-in bear viewing starts in May but is at its best in July.

Looking to book a cruise to see Alaska's wildlife? See the top cruises on GoToSea , a service of U.S. News.

Tips on Trips and Expert Picks

Travel tips, vacation ideas and more to make your next vacation stellar.

If you are an avid angler – or just want to watch the bears fish for their supper – then visit Alaska during the peak salmon runs, from May to September. King salmon season begins in May and goes through the end of July. The silver salmon run lasts from July up until the end of November. Red salmon are available between mid-June and mid-August, while you can catch pink and chum salmon in the brief window from mid-July to mid-August.

If you prefer halibut or just want to get out on the ocean, the best time for this wild Pacific species is from May to September. You can also seek out many other river and ocean species, such as rainbow trout, arctic char and northern pike. Cruise lines offer fishing excursions, or you can arrange for a private or group charter in an Alaskan town like Ketchikan.

If you want to see brown bears during the salmon run, book a bear-viewing excursion in one of the ports, such as Icy Strait Point. Or, extend your trip by combining a visit to Katmai National Park and Preserve and the renowned Brooks River with a stay at Brooks Lodge. Brooks Falls is the site for iconic photos of bears catching salmon that are jumping over the falls, and you may be able to view the bears feasting in salmon season when the property is open, from June through mid-September. The lodge is accessible by floatplane from King Salmon. You can also add a flyover tour during your stay to see the Valley of Ten Thousand Smokes, an area in southern Alaska transformed by ash from the 1912 Novarupta-Katmai volcanic eruption.

Aurora season – the best time to see the northern lights in Alaska – runs from mid-August to mid-April. While some passengers cruising the Inside Passage may catch a glimpse of the phenomenon in late summer and early fall, it's not guaranteed. As southeast Alaska typically has more precipitation and clouds since it's a temperate rainforest, you likely won't find optimal conditions for aurora viewing here.

Your chances to see the lights are better the further north you go, so you may want to look at booking a cruisetour: a land and sea package that's usually offered by some of the major cruise lines from May through September. These combined trips generally include the cruise, overnight accommodations in lodges, railway journeys and motorcoach travel between destinations.

With these tours, you'll be able to visit the vast landscape of Alaska, where you can explore cities like Anchorage and Fairbanks or spend time in Denali National Park and Preserve – and you'll have a better chance to view the northern lights. Lines that offer cruisetours include Norwegian, Celebrity Cruises , Holland America, Princess and Royal Caribbean.

Since 2024 is projected to be one of the best years to view the aurora borealis in Alaska, you might want to extend your trip to venture above the Arctic Circle or into Alaska's interior for a prime viewing opportunity. Fairbanks and the Arctic region are under the auroral oval, which is where the northern lights activity is concentrated. You can watch the forecast for the aurora borealis online at Explore Fairbanks' Aurora Tracker and the Geophysical Institute's Aurora Forecast .

Read: The Top Places to See the Northern Lights

Some of the excursions offered on an Alaskan cruise may be the most expensive tours you've seen on a ship, but they're also probably some of the coolest things you've ever thought about doing while on vacation.

Note that the probability of a tour being canceled for weather is almost the same for all tours offered between April and October, as the weather in Alaska can be unpredictable. Some of the more extreme tours, however, may not be available early or late in the season. If you want the best chance for optimal weather, consider the advice from Alaska.org and book your cruise between mid-June and mid-July.

If you're looking at splurging on a bucket list adventure while in Skagway – like Alaska Shore Tours' flightseeing helicopter adventure, which includes a dog-sledding experience on a glacier – you should check to make sure it's available the month you'll be cruising. This particular tour may not be open for booking before May or after September due to the conditions for the sled dogs.

Another over-the-top excursion dependent on optimal weather conditions is the Heli-Hike and Rail Adventure that begins in Skagway. This tour includes a helicopter ride from town that flies over glaciers and mountains, then drops you off for a roughly 5-mile guided hike to view Laughton Glacier and learn about the natural history of the area. After the hike, you'll board the White Pass & Yukon Route Railroad at Glacier Station for the scenic journey through the mountains back to Skagway.

If you're interested in the Misty Fjords Flightseeing tour in Ketchikan, this thrilling ride is also best on a clear day. This Alaskan bush plane tour soars over the Misty Fjords National Monument, which has more than 2 million acres of pristine lakes, waterfalls, ancient forests and snowcapped mountains.

Tours that include activities like mountain climbing or navigating suspension bridges might also be best when done on a sunny day. The prime time for wildlife viewing and fishing, as mentioned above, will depend on what animals you're interested in seeing and which species of fish you want to catch.

The ship's excursion desk, local guides or tour providers can offer the best advice on how to plan your activities. No matter which tours you opt to take, be prepared for the ever-changing weather patterns by wearing layers – and make sure to bring a waterproof rain jacket. Before booking, you should check the individual tour operator's cancellation and refund policy.

Read: The Best Alaska Tours

The Bottom Line

If you're flexible as to when you can travel to Alaska, you may be able to take advantage of lower pricing, travel incentives and added perks in the shoulder seasons – and you'll have fewer crowds than in the busy summer months.

If your goal is to view wildlife, then most of the cruise season, especially from May to September, will offer ample opportunities to see bears, humpbacks whales, bald eagles and other amazing animals – depending on the itinerary and excursions you choose. You'll also be able to catch Alaska's prized salmon throughout much of the cruise season.

And if extreme adventures are going to be the highlight of your vacation, then be sure to check with the tour providers to make sure your top picks are offered when you're planning to travel. Not all tour providers operate the full seven months of the season.

No matter when you decide to visit, a cruise to The Great Land will be one of the most memorable vacations of your lifetime.

Planning a cruise to see Alaska? See the top cruises on GoToSea , a service of U.S. News.

Why Trust U.S. News Travel

Gwen Pratesi is a U.S. News contributor and an avid travel adventurer who fell in love with Alaska on her first visit to the state many years ago. She's returned several times on land trips and by ship to seek year-round outdoor adventure, view wildlife and chase the northern lights in one of the best places on the planet to view them. She's even considered moving to The Great Land as a full-time resident. Pratesi used her deep knowledge of Alaska and the cruise industry to write this article.

You might also be interested in:

• Alaska Cruise Packing List
• The Top Alaska Cruise Lines
• The Top Luxury Alaska Cruises
• The Top Things to Do in Alaska
• Do You Need a Passport to Go on a Cruise?

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The Best Time to Cruise in Alaska

What to expect in every month of alaska cruise season.

The cruise season in Alaska is short (just May-September), but what this state lacks in winter tours it makes up for in stunning summer vistas, exciting wildlife and a travelogue of iconic land excursions.

Traditionally, July and August have been considered the best time to cruise to Alaska, as these months offer warm sun, long days, and abundant wildlife. However, the shoulder seasons (April–May and September–October) are growing in popularity, thanks to fewer crowds, lower-priced cruises and seasonal attractions like the northern lights.

When is the Best Time to Cruise in Alaska?

The Yukon, Ketchikan, Glacier Bay National Park — Alaskan cruises offer direct access to the last American frontier. If you’re a first-time visitor, the vast tundra and glaciers of Alaska can feel intimidating. After all, in addition to figuring out how to respond if you encounter a moose, you’re also worried about the weather and which month would be best to plan your trip.

Fortunately, you don’t need to sweat too hard about that last one as there’s no bad month to do an Alaska cruise .

Both the peak season and shoulder seasons offer high-quality excursions , breathtaking scenery and memorable tourist events and cultural festivals. So the “best time to visit Alaska” looks different for each person, as your personal trip preferences are what determine the best month for you.

To help you select the ideal time for your trip, the following guide will introduce you to weather and attraction differences between the months. Then we’ll wrap up by answering some frequently asked questions about Alaskan cruises — the best time to see whales and northern lights, the best time for salmon fishing and similar queries.

May in Alaska

While the tourism season in Alaska doesn’t really kick in until June, many small cruise ships start running tours in May. If you’re looking for dry weather and lots of wildlife, then May is a great time to join a cruise as it’s one of the state’s driest months and features spring migrations and lots of newborn wildlife.

A downside to visiting Alaska in May is that the interior National Parks are still closed, along with many of the land-based attractions and shops that later cruisers will get to enjoy. 

Advantages of Visiting Alaska in May

• Decent weather, with coastal temperatures at 40-55 degrees and about 16 hours of sunlight per day. In the interior, the temperature drops to 30-55 degrees but daylight increases to 18 hours.
• May is part of the spring shoulder season and sees fewer visitors than later in the year, so you should be able to find better travel deals and lower cruise prices.
• For wildlife spotters, May offers migratory songbirds, pods of gray whales and herds of moose. Bring a pair of binoculars and you may even spot a wolf or lynx on the prowl.

June in Alaska

June brings summer and fleets of cruise ships to Alaska. The warming weather even allows cruise ships to penetrate Arctic waters, giving you the opportunity to see polar bears on Wrangel Island.

Down south, the waters around the southwestern and southcentral regions of Alaska teem with ships visiting Kodiak Island, the Aleutian Islands, Prince William Sound and Katmai National Park.

As for land trips, June sees Denali National Park and Kenai Fjords National Park open, both of which offer stunning floatplane and flightseeing adventures. Alaskan railroad trips are also available, giving you access to interior hiking, cozy lodges and remote wildlife viewing. 

Advantages of Visiting Alaska in June

• Warming coastal temperatures between 40-60 degrees and even warmer interior temperatures of 50-70 degrees.
• Between 18 to 20 hours of daylight, giving you lots of time to enjoy the Alaskan wilderness and wildlife.
• Wildlife is everywhere in June, with caribou, black bear cubs, mountain goats, moose calves and even polar bears out in force. On the water, pods of beluga whales can be spotted, along with plentiful seabirds and seal pups.
• Cruises offering land tours are available, as all the major national parks open in June.
• The warmer weather and longer daylight hours mean that tourist attractions in towns like Anchorage, Juneau and Fairbanks are fully open.

July in Alaska

The cruise ship season is in full swing in July. This month brings the warmest weather of the year, the longest hours of daylight and the largest number of tourists. And for good reason, as July in Alaska is ideal for salmon fishing, culture festivals like the Girdwood Forest Fair, bear viewing and memorable trips into the interior.

Cruise bookings can be difficult to come by in July, but with some careful planning ahead, you can secure cabins on either large or small ships.

If you’re looking to get away from the summer crowds and enjoy an intimate cruise in remote Alaska, then we recommend booking an ocean view cabin on a smaller ship. Smaller boats have access to quieter coastlines, like the Wrangell Narrows, that larger cruise ships don’t have access to.

Advantages of Visiting Alaska in July

• Looking for warm weather? July is Alaska’s hottest month, with daytime temperatures ranging between 50-70 degrees and 18 to 19 hours of daylight.
• If you’re planning an arctic cruise, prepare for cooler weather, as the temperature up north dips down to 33-45 degrees. Also pack an eye mask for sleeping, as arctic cruises enjoy nearly 24 hours of daylight.
• Grizzlies, black bears and mountain goats dot the landscape. In the sea, humpback whales and otters splash about, and overhead you can spot millions of migrating shorebirds.
• For the anglers, July is spawning season for salmon, making it perfect for fishing trips.

August in Alaska

August closes Alaska’s cruise season. This month brings cooler weather and more rain but fails to dampen the high spirits on cruise ships.

From the Alaska State Fair in the Mat-Su Valley to the Talkeetna Bluegrass Festival, there is so much to do in this glorious state in August. Blueberries are in season, with berry festivals following, bears roam the hills, and Seward’s Silver Salmon Derby is the perfect place to cast your fishing rod.

As August winds down, fall colors explode across the mountains, giving you gorgeous landscapes to explore by ship, train and foot.

Advantages of Visiting Alaska in August

• Warm weather, with temperatures between 45-65 degrees and 18 hours of daylight.
• Abundant fishing opportunities, as halibut, northern pike, rainbow trout and salmon are all in season.
• Numerous cruise and land tour packages on offer, giving you access to the breathtaking fall foliage of the Last Frontier.
• As for wildlife, August is peak migration season for songbirds and you’ll see numerous caribou, bears, beavers, orca and loons on your adventure.

September in Alaska

As the school season begins and fall approaches, cruise prices start to dip, affording the opportunity to snag a last-minute bargain for Alaska. We still recommend planning ahead though, as an increasing number of tourists have been booking cruises each year in September.

If you’re hunting the northern lights, then include a land trip to Fairbanks, where you can enjoy Denali Park and hopefully catch a glimpse of the aurora borealis.

September also increases your wildlife sighting opportunities, as animals across the state begin migrating, foraging for hibernation and engaging in courtship rituals.

Advantages of Visiting Alaska in September

• Pack warm clothes and enjoy September’s cool temperatures that vary between 35-55 degrees. If you’re on an arctic tour, pack winter coats, as you’ll experience daytime temperatures of 28 to 33 degrees.
• Looking for a bargain? September increases your odds of finding low-cost tours and other Alaska cruise deals.
• September thins out the crowds of cruisers, giving you greater access to tourist locations that would be packed during July or August.
• Elk, caribou, bears, moose and deer can be spotted across the wilderness. Above, raptors and gulls migrate south and bald eagles hunt for prey. Below, harbor seals and sea lions dot the beach, and pods of gray whales pass your cruise ship.

What’s the Best Time to See Whales on an Alaska Cruise?

Gray whales, humpback whales, orca, beluga whales — Alaska has them all. Here are some quick tips to help you increase the odds of seeing whales during your cruise.

• Humpback whales: June and July are the best months for seeing these giants of the deep. Over 500 humpback whales spend summer within the Inside Passage, so select a cruise that passes through this route and visits the Barren Islands.
• Beluga whales : You can spot belugas in Turnagain Arm from mid-July through August, just south of Anchorage. September is also a good month for belugas, as long as your cruise passes Nome.
• Gray Whales : April and May are ideal for gray whales, as they feed around Kodiak, Sitka, Ketchikan and Seward.
• Orca (Killer Whales) : The ideal time for orca spotting is between early May and early June when you can find these colorful behemoths feeding in Resurrection Bay and along cruise routes going between Seattle and Alaska.

When’s the Best Time to See the Northern Lights on an Alaska Cruise?

Seeing the northern lights from the cruise ship is a rare occurrence, but if you’d like to catch a glimpse of the aurora borealis from the balcony on your stateroom, then you need to book a trip in late September or early October.

To maximize your chance of witnessing the northern lights, get off the boat and join a land excursion to Fairbanks. The aurora season in Fairbanks lasts from the end of August to April and the lights can be seen four out of five nights if the sky is clear.

When’s the Best Time to Cruise to Alaska for Salmon Fishing?

Luckily, any cruise season month is a good time to fish for salmon in Alaska. Here’s a quick guide to help you time your trip to match when your favorite salmon is running:

• King salmon : May–June
• Sockeye salmon : June–July
• Silver salmon : Mid July–late August
• Chum salmon : July–August
• Coho salmon : July–September
• Dog salmon : July–October
• Pink salmon : July–October

What is the Best Month to Cruise Alaska?

The best month to visit Alaska depends on what you hope to experience during your trip.

• Do you want as much sun and daylight as possible? Then book a June or July cruise.
• Would you like to see lots of wildlife? Then purchase a May, August or September cruise as these months feature young animal families and migrations.
• Do you want to get into the interior and see Denali National Park or the Yukon? Then select July or August.
• Are you chasing bright tree foliage? Then book a cruise at the end of August or in September.
• Would you like to avoid mosquitoes? Then May and September are the best months for your cruise.
• Are northern lights on the itinerary? Then your trip will be in September or October. Would you like to fish for salmon? Then select any summer or shoulder month.

The good news is that no matter which month you choose, your Alaskan cruise will reward you with incredible experiences and memories that last a lifetime.

Book Your Alaskan Cruise Adventure

At AAA , we offer a wide selection of cruise itineraries to those explorers who want to get up close and personal with Alaskan wildlife, landscape, and culture.

While you’re on the boat, you’ll enjoy delicious and local cuisine, with many of our cruises offering fine-dining options. And in addition to the glaciers outside, you can stay entertained with phenomenal live music performances featuring musicians from The Juilliard School, B.B. King’s Blues Club Memphis, and other institutions.

Interested in planning your next Alaska cruise with AAA? Call your travel agent directly or your nearest AAA store to get pro tips, travel guides, and more.

Interested in planning your next road trip with AAA Washington? Call your travel agent directly or your nearest AAA store to get pro tips, TripTik maps, and more. Find more Pacific Northwest scenic drives and road trips .

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The best time to cruise Alaska

Alaska is a cruise destination with a limited season. Cruise ships arrive in southeast Alaska in spring, stay the summer and linger only into early fall. The 49th state's snowy, cold and dark winters are not conducive to cruising.

Most cruise passengers will head to Alaska between Memorial Day in late May and Labor Day in early September when temperatures range from slightly chilly to warm during the long daylight hours. Tourist attractions are in full swing, salmon swim upriver and bears (and humans) have access to fishing.

Some adventurous cruisers will board ships when they arrive in Alaska in April to see the remnants of winter. A few big ships cruise into mid-October for those who want a peek at what life is like in Alaska towns when all the other tourists have returned home.

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Each month has its advantages, not the least of which is discounted pricing in the spring and fall shoulder seasons. Here is a guide to help you decide when to cruise in Alaska.

After a long winter, Alaska begins to wake up in April, and that includes the wildlife. Small-ship cruise lines such as Lindblad Expeditions and UnCruise Adventures have sailings into the wilderness, where you might spot bears emerging from their slumber and admire huge waterfalls fueled by the snowmelt. A few big ships, such as the 4,000-passenger Norwegian Bliss out of Seattle, begin their season this month with discounted early season pricing.

You may encounter freezing rain or even snow on your April cruise and should expect to tread through mud. Some tourist facilities — including those at national parks — may still be shuttered for the winter.

On the other hand, you will have the opportunity to observe the change of seasons. Expect crisp mornings with temperatures in the 30s, though by the end of the month, you may find dry weather and temperatures in the 60s. As an added bonus: The skies will be dark at night; if clear, you might spot the northern lights.

Related: The best Alaska cruise for every type of traveler

As someone who has cruised Alaska many times, I love cruising in May when the weather is dry and locals are emerging from their winter cocoons, embracing the sunshine. The wildlife is doing the same, and you might spot bears with their cubs, moose with their calves and humpback whales returning from their winter home in Hawaii.

Big-ship cruise lines such as Holland America Line , Princess Cruises and Royal Caribbean ramp up their operations in May, as do Disney Cruise Line and small-ship and luxury lines. Early season deals might be available.

Attractions and shops will switch to peak-season hours at the end of the month; Denali National Park & Preserve switches into summer mode in May. You'll find those who work in tourism excited to be back in business, considering that many people in southeast Alaska earn their income from out-of-state visitors. Cruise lines will offer the opportunity to extend your cruise with land tours, which include accommodations, transportation and some meals.

While early May often carries a chill in the air, by the end of the month, you might encounter temperatures in the 60s. The warmer weather means glaciers begin shedding ice more frequently, so you have a better chance of experiencing the sight and sound of a house-size chunk of ice calving into the sea. There's also the bonus that Alaska's large mosquito population has yet to emerge.

Related: Alaska cruise guide: Best itineraries, planning tips and things to do

The cruise season beefs up in June, with the number of ships growing and the season in full swing by the end of the month. The midnight sun means many hours of daylight, especially on June 20, the longest day of the year — when you'll have to stay up late to see any darkness at all.

Early in June, the ships are still mostly carrying adults, with the family crowd — including multigenerational groups — arriving later in the month.

Shore excursion experiences abound. Temperatures are pleasant — in the 60s and sometimes higher, with wildflowers in bloom and glaciers calving. Anglers will find opportunities to reel in halibut along with king and sockeye salmon and rainbow trout. In addition to humpbacks, you might also spot belugas and seals with their pups as you sail.

At the beginning of the month, you might still be able to find some early season pricing; the peak season for Alaska cruising begins in late June.

Related: Alaska cruise packing list: What to pack for a sailing up north

July and August

Summer is the height of the Alaska cruise season, which means crowds in port towns, especially when several ships are in port at the same time. You might have to wait hours for a table at Tracy's King Crab Shack in Juneau.

It might surprise many, but July and especially August are rainy, so don't expect endless sunshine. That said, you are in Alaska at a time for festivals and other special events, and frontier towns really come alive.

Temperatures will be in the 60s, sometimes higher — you might even see 80s in Juneau in July. During long days of light, you'll find hearty Alaskans swimming in the sea and enjoying water sports. Shore excursion options will be in full swing.

During both months, you will encounter peak-season pricing. Unless you booked early, cabin choice could be limited — especially if you are looking for a fancy suite or cheap inside cabin, which tend to be the first categories to sell out. Balcony cabins are particularly popular in Alaska.

Mosquitos enjoy the summer, too, so pack bug spray. July and August are also spawning season for salmon, so you might spot grizzlies and brown bears near rivers and streams.

Keep an eye out for seabirds and songbirds, seals, Steller sea lions and humpback whales. Marine life is so prolific that some small-boat shore excursions guarantee you will see animals. Bears will be fishing; in late August, they will be looking for blueberries, which also become a featured item on restaurant menus. Toward the end of August, you'll see leaves changing to fall colors.

Related: Best Alaska cruise shore excursions — from heli-hiking to whale watching

The beginning of September is much like August, but after the kids go back to school and the family crowd departs, it's shoulder season for cruising and pricing drops. Most cruise ships will have repositioned out of the state by the end of the month. You will experience a change of season, with cooler temperatures (in the 50s or lower) and some rain.

Mid-to-late September is one of the best times to spot wildlife in Alaska. I have had extraordinary experiences, such as watching a pod of humpback whales gather together in bubble-net feeding (corralling fish in a "net" of bubbles) to fill their bellies in preparation for their annual journey to warmer waters. Bears will be hunting for the last of the berries and salmon, and caribou, deer and moose will be mating.

You'll see colorful fall foliage but not mosquitos. National park facilities and some tourist businesses will switch to winter hours. September is also a great time to get deals on souvenirs, as merchants sell off this year's goods at the end of Alaska's tourist season.

On clear nights, you could have a chance to spot the northern lights — though they won't shine as brightly as they do in winter. Rather than stay up all night, see if your ship or pre- or post-cruise hotel has a sign-up sheet for people who want a wake-up call should the lights appear.

Related: From Alaska to the Panama Canal: Here are 9 of TPG's favorite fall cruise itineraries

A limited number of cruises in October (predominantly on Norwegian Cruise Line ) make it possible for cruisers to experience a taste of Alaska in winter without sub-zero temperatures. You will want to bundle up; the average temperature in Juneau in October is 39 degrees. Days will be short — there are only about 10 hours of daylight. You are likely to experience rain and maybe snow.

Some attractions and shops will be closed for winter, though your cruise line will still operate a full roster of shore excursions. On the plus side, you will experience southeast Alaska towns as they are most of the year, sans tourist crowds. Sit in a bar and talk to the locals as they prepare for the long winter ahead. Cruise fares will be discounted.

Related: Caribbean vs. Alaska cruises: Which itinerary will I like more?

Bottom line

Alaska is a thrilling cruise destination no matter which month you sail. Look to the early and late sailings of the season if you are a bargain seeker. Choose a May or June sailing for drier weather and fewer mosquitos; summer is the best time to cruise to see abundant marine life and birds. September can be a great month to see wildlife.

Planning a cruise? Start with these stories:

• The 5 most desirable cabin locations on any cruise ship
• The 8 worst cabin locations on any cruise ship
• A quick guide to the most popular cruise lines
• 21 tips and tricks that will make your cruise go smoothly
• 15 ways cruisers waste money
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• What to pack for your cruise

The Best Time to Cruise Alaska: A Month-by-Month Guide

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Choosing the best time of year for an Alaskan cruise can be challenging. From month to month, the weather, wildlife, and your chances of viewing the mesmerizing Northern Lights vary greatly.

Since I grew up in Alaska, I’m a fan of just about everything in the Land of the Midnight Sun. I also know that your experience can vary widely depending on the month you choose to visit Alaska.

Which raises the question…

When is the Best Time of Year to Cruise to Alaska?

The abbreviated Alaskan cruising season goes from May to September. Although you’ll find the highest number of travelers visiting Alaska during the peak cruising (and fishing) months of July and August, the ideal time for your Alaskan cruise depends most on your personal priorities.

In this post, I share a month-by-month guide about the best time of year for an Alaskan cruise. I’ve included tips on the weather, wildlife, daylight, and the general experience you’ll have each month of the Alaska cruise season to determine when to set sail for the 49th state.

Alaska Cruise Season

The cruising season to Alaska is shorter out of necessity. Weather, ocean conditions, and limited sunlight make winter cruising to Alaska impossible.

For major cruise lines, the Alaska cruise season runs between May and late September, including Viking and Disney.

Many cruise lines also have limited early cruise ships departing for Alaska in April. Norwegian Cruise Lines has the first departures of the season in early April from Seattle.

Holland America Princess, and Royal Caribbean have Alaskan Inside Passage cruises departing from Vancouver at the end of April. Carnival has 14-day Alaskan cruises departing from Seattle and Long Beach in late April.

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Alaskan Cruise Month-By-Month Guide

What to Expect on an Alaskan Cruise in April

Spring in Alaska is a unique experience. The benefits of cruising in April include less expensive pricing, fewer tourists, and less crowded ports. Here is a breakdown of other important considerations for an April Alaskan cruise.

Locals typically call the months of April and May “break-up” because the snow and ice begin to break apart and melt after the long winter. What does this mean for tourists? Snow and mud! In April, mountains will still be snowy, and high temperatures will max out in the upper 40s for most cruise ports.

April marks the beginning of the dry season for Southeast Alaska. However, it’s important to remember that this area is part of the world’s largest temperate rainforest.

The average rainfall in Juneau during the month of April is 2.77 inches. Although the rain isn’t convenient, it is the reason for the lush vegetation you enjoy.

Be sure to pack high-quality rain gear for excursions along with warm, layered clothing and a hat and gloves. Many early spring cruisers also pack a winter coat.

Because of its latitude, Alaska experiences extremes in daylight in the summer and darkness in the winter.

On Winter Solstice (December 21 or 22), the state breaks out of its winter hibernation and begins gaining a few minutes of sunlight each day. By the time Summer Solstice occurs (June 20,21, or 22), travelers to Juneau, Alaska, a common port, will experience a day with 19 hours of sunlight.

In April, towns along the Inside Passage will have just over 15 and a half hours of sunlight and will be gaining daylight every day.

Since the skies do still get dark during this month, there is a slight chance that you’ll be able to view the Northern Lights on an Alaskan cruise in April. Peak viewing of the Aurora Borealis happens between November and March, but on a clear night with lots of solar activity, you have a shot at this once-in-a-lifetime viewing experience.

When it comes to Alaskan cruises, balcony cabins come at a premium. You can save money by opting for an inside or an oceanview cabin. However, the views and ability to go sightseeing from your room on ocean days make the higher price worth it.

If you purchase a balcony cabin, you can take advantage of the long days in the Land of the Midnight Sun. As your ship reaches the Inside Passage, the early morning views outside of your room are breathtaking.

There are plenty of animals to see while cruising to Alaska. Arguably, the biggest draw is the marine animals, with opportunities to see pods of humpback whales, gray whales, orcas, sea lions, sea otters, and more.

There are also amazing birds, including bald eagles and land animals like mountain goats, Dall sheep, and brown and black bears.

Although gray whales are more elusive than their humpback cousins, April is your best chance to spot them as they migrate from their winter breeding grounds in Baja, Mexico, to feed in the waters inside the Interior Passage of Alaska.

Orca whales (which are actually members of the dolphin family) are a fairly common site on an Alaskan cruise. “Resident” orcas (who stay near shore and feed on fish) are easy to spot and fun to watch from the cruise ship or on a whale-watching excursion.

General Experience:

Choosing to cruise in the early spring of Alaska will impact your experience. Less travelers might sound appealing, but many port towns aren’t fully “tourist operational” until late June when summer workers start to arrive.

An April sail date is one way to save money on your Alaskan cruise. Just expect cooler weather, fewer wildlife viewing opportunities, and less active ports with some shops that are still shuttered.

Related: What to Pack for an Alaska Cruise (clothing, gear & essentials)

What to Expect on an Alaskan Cruise in May

Cruising to Alaska in May is still considered early in the season. As the month progresses, temperatures rise slightly, and daylight hours increase.

While prices in the early season are generally less expensive, your experience during a May cruise will look different from during the high season in July and August. Here is what you’ll find in Alaska in May.

Alaska will still be emerging from winter during May. The high temperature in May in the capital city of Juneau, averages in the mid-50s, with lows in the 40s.

In most Alaska ports, rainfall occurs about 15 days of the month. You’ve got about a 50/50 chance of getting rained or snowed on during excursions. You’ll be very happy if you purchase a quality raincoat and pack clothing you can add or remove in layers.

A hat, gloves, and a winter coat would be a good idea to pack for an Alaskan cruise, especially if you depart in April, May, or September.

Alaska is still gaining sunlight as the Summer Solstice approaches, so you’ll experience longer days during your May cruise.

At the beginning of the month, sunrise in Juneau begins at 5:00 a.m., and sunset is at 8:47, resulting in 15 hours and 47 minutes of daylight. As May closes, the days are even longer, with the sun rising in Juneau at 4:00 a.m. and setting at 9:49 p.m. (almost 18 hours of daylight!).

Another thing to keep in mind when deciding the best month for your Alaskan cruise is wildlife viewing opportunities.

Salmon usually begin their long journeys home to spawn in May, but they come in different waves or “runs.” You might have a chance to view bear feeding on salmon this early in the springtime, but your chances are better later in the summer.

There are exciting marine animals that you can see this early in the Alaskan springtime.

Alaska’s Stellar sea lions are an impressive sight for cruisers. Because they don’t migrate, you have a great chance of viewing these 1000+ pound, 10-foot-long animals on rocks near the shorelines as you cruise. Be sure to listen for their signature roar.

There is also potential for viewing orcas, gray whales, and walruses.

May is an excellent cruising month for birdwatchers as migratory songbirds start to arrive in Alaska and seabirds gather in their nesting spots or rookeries. Keep an eye out for my favorite, the ever-adorable puffins, Arctic terns, cormorants, and bald eagles.

May is a practical choice for Alaskan cruisers who are on a limited budget but want to have slightly warmer and drier weather and more chances to see wildlife. Your views will likely include snowy mountains, but they are gorgeous nonetheless.

Expect less activity and fewer shop openings in some smaller port towns in May since most summer workers are in college and won’t arrive until June.

What to Expect on an Alaskan Cruise in June

Things start hopping in Alaska in June. Summer workers (typically college students) begin to arrive for the peak tourist season, and shops and restaurants open for the summer.

As the temperature warms up, the snow on the ground in port towns melts, and more wildlife begins emerging from their winter dens.

Because school is often still in session for younger children in May and June, taking an Alaskan cruise in the early Spring/Summer is a good choice if you prefer fewer children on board.

In the Lower 48, temperatures in June start to heat up, not so much in Alaska.

While temperatures are warmer and the snow is typically gone at lower elevations, the highs in Juneau average in the low 60s, with lows in the upper 40s.

Temperature is relative, so don’t be shocked if you see an Alaskan sporting shorts and a tank top in June. The 60s can feel downright tropical after winter temperatures in the 20s and 30s.

Rainfall slows down a bit in June, with about 13 days of the month having some precipitation.

Packing-wise, you’ll still want to bring a raincoat, but you can probably leave your winter coat home if you are cruising in June.

It is remarkable to experience Alaska on or around the summer solstice. The amount of daylight increases as you travel northward, but even Juneau’s 19-hour solstice day, with the sun rising at 3:48 a.m. and setting at 10:09 p.m., is a fantastic experience.

If you are in port, you’ll get to see how Alaskans take advantage of the Midnight Sun with locals out biking, hiking, and fishing at all hours of the night.

You’ll also have more hours to look for wildlife from your room window or veranda.

If you have an exterior room and are sensitive to light while sleeping, a sleeping mask will help you rest during these long days.

Humpback whales are the most commonly seen whale in Alaska. They begin migrating from Hawaiian waters in the springtime to feed in the nutrient-rich Alaskan waters.

While it is possible to see humpbacks during the entire cruise season (April-October), your best bet for whale watching will be the months of June, July, and August. They are quite an awe-inspiring sight to see as they travel in pods, breech, and feed.

This is also the time of year when King Salmon runs both begin and end. If you are an angler, there is nothing like hooking and reeling in a King. With an average size of 24 to 36 inches and weighing 10-50 pounds, you’ll finally have a true fishing story worth telling.

If you cruise to Alaska in June, you can expect warmer and drier temperatures, fewer children onboard, increased wildlife sightings, and more cruise offerings.

June is a smart choice for cruisers who don’t want to travel during peak season but want more opportunities.

Related: What to Wear on an Alaska Cruise (outfit ideas with photos)

What to Expect on an Alaskan Cruise in July

Weather is a pretty big consideration when it comes to booking an Alaskan cruise. Temperatures can be quite chilly on deck and in ports of call. If you have a low tolerance for cold weather, cruising Alaska during the warmest months of July and August is a better choice.

July and August are considered peak seasons to cruise to Alaska for good reason. These are the months when all good things combine to create the optimal Alaskan experience.

That being said, the weather and wildlife in Alaska are notoriously unpredictable. You could book a cruise in July and never get above the 50s. You might take a float plane to see bears and, sadly, not see a single one.

My advice is to pack plenty of warm (and waterproof) layers , expect the unexpected, and find joy in whatever experience you get.

The weather in July only trends slightly warmer than June. The average July temperature in Juneau is 64 degrees, with an average low of 51 degrees.

The dry season ends, and precipitation starts to increase in July. Rain falls on average 14 days of the month. Just remember our earlier reminder that you are visiting the world’s largest temperate rainforest and enjoy the lush greenery.

After the Summer Solstice in June, Alaska begins losing daylight with each passing day. While the days are still longer than those in the Lower 48, they are getting slightly shorter throughout July.

In Juneau, the sun rises at 3:54 a.m. at the beginning of July. By the end of July, it starts rising at 4:45 a.m.

Sunsets move to earlier in the night as the month progresses. The sunset on July 1 in Juneau is at 10:07 p.m., and by the end of July, it is at 9:21 p.m.

Although it is getting darker earlier, solar activity is not at its peak in the summer, so your chances of viewing the Northern Lights in July are slim to none.

July is a spectacular month for viewing wildlife in Alaska. Not only are humpback whales, orcas, sea lions, eagles, and seabirds easier to see as they feast in the nutrient-rich summer waters, but the likelihood of seeing the indomitable Alaskan brown, black, and Kodiak bears increase as they focus on fattening up on migrating salmon.

Small-ship Alaska cruise lines like American Queen Voyages and Uncruise can go further into narrow passages and get closer to shoreline wildlife like Dall sheep and bears.

If bear viewing is high on your bucket list and you are traveling on a bigger cruise ship, look for a float plane excursion that will take you to where the bears feed.

July is filled with opportunities to see the stunning wildlife of Alaska while enjoying milder temperatures.

July also brings the highest number of tourists to Alaska. If you cruise to Alaska this month, you can enjoy more shop and restaurant options in port towns but expect things to be slightly more crowded.

What to Expect on an Alaskan Cruise in August

August is a delightful time to cruise to Alaska. You’ll enjoy wildlife viewing, warmer temperatures, and daylight returns to more typical hours. However, the dry season has ended, so rainfall will begin to increase as the month progresses. 

For cruise itineraries in Alaska, August high temperatures will be somewhere in the upper 50s and low 60s. We’ve reached the pinnacle of summer temperatures, and the rainier season has just begun.

Juneau gets about 17 days of rain in August, so a high-quality raincoat is essential.

With lows in the 50s, you don’t need to pack a winter coat and hat, but be sure to include warm, wicking layers to keep your temperature steady.

By the end of August, the sunrise and sunset times in Alaska are pretty close to “normal” times for most states in the USA. You might feel like you aren’t getting the true Alaskan “Midnight Sun” experience this month. 

In Juneau, on August 31, the sunrise is at 5:52 a.m., and the sunset is at 8:01 p.m.

The loss of daylight does mean you could see the Aurora Borealis while cruising to Alaska in late August. The best time to see the Northern Lights is between late August and April, typically peaking in March.

Unfortunately, seeing this supernal show of sun activity is not a given. Overcast skies are common in Alaska and block the Lights, and the solar activity that creates the phenomenon is unpredictable. You can increase your chance of seeing the Northern Lights by asking crew members if you can get placed on a list that will be notified when, as we say in Alaska, “the lights are out.”

In August, the wildlife can sense that winter is on its way, and activity picks up to prepare for the months of cold, snow, and darkness.

You might see bears that are continuing to fatten up before hibernation. Humpback whales have yet to begin their migration to warmer waters, so you will still be able to see them, especially in early August.

Seabirds will still be feasting on fish. You also might see fuzzy harbor seal pups and sea lion pups (born in June and July) warming themselves on rocks with their mothers. Add high-powered binoculars to your Alaska packing list to ensure that you get to see all of the wildlife possible.

General Experience :

You can’t go wrong with a cruise to Alaska in August. Not only is it your best shot for warmer weather, but you’re also sure to see a good amount of the wildlife Alaska is famous for.

Warmer weather in Alaska also has an unexpected bonus for cruisers in the form of glacial calving.

Glaciers are a natural wonder that no photographs can do justice. Until you have experienced the majesty of an ancient river of ice in an unparalleled blue, it is hard to imagine!

Every Alaskan cruise includes at least one glacier viewing stop. The warmer the weather, the better your chance to view a once-in-a-lifetime occurrence called “calving.” This is when a large chunk of the glacier separates in a giant icy landslide.

Not only is the cracking sound shocking, but the calving also produces a giant wave of water and captivating icebergs. July and August are prime time for viewing glacier calving on an Alaskan cruise.

What to Expect on an Alaskan Cruise in September

April, May, and September are considered shoulder seasons for cruising to Alaska. Shoulder season is the time between peak season and off-season when there are fewer cruisers and lower prices.

A September cruise has its benefits, including less crowding and cheaper prices. However, a cruise this time of year will also slightly decrease your chance of viewing wildlife and make for sleepier ports of call because most summer workers return home for college.

In Alaska, we measure the return to winter by how far up the stalk Fireweed flowers have bloomed. By September, the blooms are most certainly to the top as winter rapidly approaches.

High temperatures in September in Juneau hover around the upper 50s with lows in the mid-40s, though, so it is still an enjoyable time to visit.

Precipitation increases to 19 days of the month, so pack a raincoat with a hood (you’ll be grateful to have it!).

There is a chance you will see some snow, so a winter coat, gloves, and a hat are a smart addition to your packing list.

In September, the scale now tips towards later sunrises and earlier sunsets in Alaska. By the end of September, there are less than 12 hours of daylight in Juneau.

Cruising in September will give you the highest chance of viewing the Aurora Borealis on an Alaskan cruise. You won’t want to miss this indescribable sight, so watch for clear night skies and set an alarm to go on deck (or on your balcony) for potential middle-of-the-night Northern Lights shows.

Gray whales and Humpback whales begin their migration to warmer waters in October and November, so you still have a chance to see them in Alaskan waters in September.

Birds also haven’t started their migration, so you can spot both songbirds and seabirds as you cruise along the coast.

Silver salmon runs are possible in September, but not a guarantee.

September is also an excellent time to witness a towering Alaskan moose. By this time of year, bull moose have a full rack of antlers. With shoulder heights at 6 foot 9 inches and over 1,400 pounds, these massive animals are as dangerous as impressive, so you’ll want to view them from a distance.

Cruising to Alaska in September has many benefits of the peak season (milder weather and good wildlife viewing) with less expensive prices and fewer tourists.

Although the weather will likely include more rain, you have a better chance of viewing the Northern Lights, which might outweigh this drawback.

If your itinerary includes stops in Anchorage, Seward, or Whittier, you might experience rougher seas as you cross the Gulf of Alaska in September.

FAQs About Alaskan Cruises

What is the best time of year to see the northern lights on an alaska cruise.

The peak season to view the Northern Lights or Aurora Borealis is between late August and late April, which unfortunately doesn’t overlap much with the Alaskan cruise season. If the Northern Lights experience is high on your Alaska bucket list, consider a September cruise with more dark nighttime hours and increased solar activity.

How far in advance should you book an Alaskan cruise?

If you are hoping to travel during peak Alaskan cruise season (July and August), you should plan on booking your Alaskan cruise at least one year in advance. The farther in advance you can book your Alaskan cruise, the more options you will have for cruise dates, itineraries, and cabin amenities.

Are the seas rough on an Alaskan cruise?

When traveling from Vancouver in the Inside Passage of Southeast Alaska, the waters are mostly protected and provide smooth sailing. If ports include Anchorage, Seward, or Whittier, cruise ships must cross the Gulf of Alaska, which has notoriously rougher waters. This is especially true after Labor Day.

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Final Thoughts on the Best Time of Year for an Alaskan Cruise

Peak cruising months, July and August, are the best time of year to cruise to Alaska. During these months you will have the warmest weather and the greatest chance to see wildlife.

If you want to see the Northern Lights, September is the best option for your cruise to Alaska, although sightings are not guaranteed.

Are you thinking of taking an Alaska cruise? Please let me know in the comments below.

Happy Cruising!

If you found this article helpful, please pass it along. Please feel free to share on Facebook or PIN to your favorite Pinterest board (share buttons at the top). Thanks so much!

Author Bio:

Stephanie Yrungaray grew up in gorgeous Eagle River, Alaska and now calls Utah her beUtahful home. She enjoys traveling and exploring with her husband and five kids any way she can, from cruising to RV camping and everything in-between! When she’s not out exploring, you’ll find her writing about travel, finances and parenting as well as gift ideas on her website,  www.TheGiftyGirl.com . 

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The Best Time to Cruise Alaska

Scott Laird is a freelance travel writer. His work has been published in TravelPulse, TravelAge West, and other publications.

Tourist Attraction Availability

• Whale Watching
• The Northern Lights
• Key Events & Festivals
• Frequently Asked Questions

The best time to cruise Alaska is in May or June, at the beginning of the cruise season. Alaska’s cruise season has always been short, peaking quickly at the height of the summer months and then done by early fall. But as the destination has grown in popularity, the season has extended, and there’s a definite sweet spot to target. In May and June, the days will be at their longest, the weather (although still unpredictable) will generally be its sunniest and driest, and the range of excursions and options at their most plentiful.

With that in mind, Alaska is still a dynamic destination—no one snapshot of time during the year is guaranteed to encompass all this state has to offer . There are always tradeoffs. Visit too early in the summer, and you'll miss the salmon runs (and the bears that come to feed on them); visit too late, and much of the wildlife that attracts summer visitors will have either started retreating for warmer climes or begun looking for a den to hibernate in for the winter.

Alaska’s weather is unpredictable, to say the least. There are days throughout the year when there can be a temperature swing of a hundred degrees on opposite ends of the state—50 degrees Fahrenheit in Sitka and 50 degrees below zero in Fairbanks , for example. May can be one of the finest months across Alaska, as daylight reaches near-summer heights, while June is even nicer, with the last chill of the arctic winter departing for the season.

The Official Visitors Guide for Juneau playfully uses a raindrop graphic for every month in the calendar (in Southeast Alaska it’s never a question of whether it will rain, but how much it will rain). Wetter weather often sets in during the month of July, getting progressively wetter going into autumn. Juneau averages 15 days of rain in June, reaching 21 days of rain by October. In Anchorage and the northern part of the state, the rain often turns to “termination dust”—i.e. snow—as early as late September.

The Alaska cruise season begins in mid-May, but it doesn’t reach full swing until after Memorial Day. Sailings departing earlier in the season will less frequently be sharing berth space in port with numerous other ships, meaning that crowds in the ports will be somewhat lighter. Later in June and through July, visitors will find themselves at the peak of the short season, when the maximum amount of cruise ships and land visitors all pour into small town centers and cycle through popular tourist attractions on a relentless schedule.

The maxim on Alaska cruises is that it’s best to book ahead to guarantee prime spots on shore excursions—although, with fewer travelers vying for slots in the shoulder seasons of May and September, that availability tends to sell out later. Wildlife tours, for example, popularly sell out of their early morning slots early, as this is an ideal time to see the wildlife before it gets exasperated with the streams of tourist buses and boats.

Offered by Princess Cruises and Holland America Line , fishing excursions that allow guests to have their catch prepared and served to them onboard the ship also sell quickly. Cruise goers set on this experience should check frequently with the cruise line regarding the anticipated permitted fishing season, as the catch is strictly limited or sometimes prohibited early on during the run, and the state’s regulations change frequently based on observed conditions.

When planning your cruise, the weather should be a consideration for many shore excursions. For example, flightseeing via fixed wing or helicopter is a popular way to see glacier fields and spectacular mountain vistas, but small aircraft are sensitive to weather conditions. Choosing to cruise during the dryer months of May and June can help give you a better chance at participating in these weather-dependent excursions, although of course there’s never a guarantee.

Alaska cruises are popular with multi-generational groups, and as such, North American school schedules tend to dictate pricing peaks. Price-conscious travelers will generally find price breaks before Memorial Day or after mid-August, when schools in many parts of the country will be in session.

Cruisers planning to sail from mid-June through mid-August should start looking at sailings up to a year in advance, particularly if there are stateroom or itinerary preferences (popular sailings that include stops in Glacier Bay or Icy Strait Point book quickly).

Another time to book is during the “Wave Season” during the first two months of the year, when cruise deals abound for all destinations. Alaska cruisers can also find good last-minute deals just a few months prior to summer departures, although the best availability for these deals is often during the May shoulder season, or for the last remaining staterooms or cruise tour slots for sporadic dates throughout the summer months. Last-minute deals are also most common on large-ship lines, including Cunard , Celebrity , Carnival , and Royal Caribbean .

Cruisers booking small-ship cruises like Uncruise Adventures or the Indigenous-owned Alaskan Dream Cruises should also plan to book far in advance, as the small capacity of the ships often limits availability on popular sailings.

The Best Time for Whale Watching

It depends on the species. Gray whales can be seen in Alaska waters as early as April. Orcas tend to migrate to (and concentrate in) Southeast Alaska in May and June, while humpback whales are at their peak in June and July. Beluga whales come later in the summer, following the salmon runs in Southcentral Alaska; the best place to see them is around Cook Inlet and the Gulf of Alaska from mid-July through August.

The Best Time for Viewing the Northern Lights

Generally considered a winter activity, the northern lights (or aurora borealis to be technical) are actually present in the upper atmosphere year-round—it’s just too light to notice them during the endless, sunny days of the Arctic summer. By August, it’s dark enough during the night to see the northern lights, and cruises in September afford the best chances with longer, darker nights—although it’s worth noting that September is one of Alaska’s rainiest months, so there’s more chance of cloud cover. That said, the routing of cruise ships away from shore and the light pollution of major cities affords some of the best conditions for northern lights spotting.

Key Events & Festivals

If you're extending your time in Alaska and planning a pre- or post-cruise itinerary, or you're simply looking for fun things to do at your ports of call, these are the top events and festivals to check out during peak Alaskan cruise season.

• In Anchorage, Summer Solstice is observed with a festival, which also coincides with Pride and Juneteenth, making the entire week feel like an endless parade. Visitors to Fairbanks—where the solstice day is a full 24 hours—will find a street festival and baseball game.
• Pride events can be found throughout Alaska in June, even in tiny Skagway, which has a year-round population of just 1,200.
• The Sitka Music Festival takes place through the month of June, with concerts and intimate chamber performances by visiting and local musicians.
• Every July 4 in Seward, competitors run a marathon, Alaska style—that is, up the side of the aptly named Mount Marathon . Throngs of crowds gather to watch and cheer on their favorites.
• Independence Day is observed throughout Alaska with fireworks and parades, most notably in Anchorage.
• Forest Fair is traditionally held in Girdwood, a progressive resort community south of Anchorage, the weekend after Independence Day.
• Off the cruise ship track (but worth a visit for visitors ending their trips in Anchorage with a day or two to spare), the Alaska State Fair is a supremely local gem, with famously gigantic vegetables, local arts and crafts, and a carnival midway that could be plucked right out of any all-American town.

May and June are the best months to go on an Alaskan cruise, as the weather will be at its warmest and driest, and you'll have the widest range of shore excursions available.

You can spot whales from April through August, although the type of whale you'll see will greatly depend on the month. Gray whales, for instance, can be found in April, while orcas appear around Southeast Alaska in May and June. In June and July, you can watch humpback whales, while beluga whales pop up in Southcentral Alaska from mid-July to August.

The best time to see the northern lights is in August and September, as the nights get longer and darker heading into winter. However, keep in mind that September is a particularly rainy month, so there's a chance that it will be too cloudy to see them.

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