Choosing the best month to do Alaska cruise depends on your priorities—whether it’s mild weather, peak wildlife, or fewer crowds. From May to September, each month offers unique experiences, with June through August being the most popular for good reason.
This is a comprehensive guide about when is the best month to do alaska cruise.
Key Takeaways
- May offers fewer crowds and lower prices: Early season cruises provide a peaceful experience with blooming landscapes and emerging wildlife.
- June and July are peak months for weather and wildlife: Long daylight hours, warm temperatures, and abundant wildlife sightings make these months ideal for most travelers.
- August brings peak foliage and active bears: Late summer offers stunning fall colors and prime bear-watching opportunities in places like Ketchikan and Glacier Bay.
- September is perfect for solitude and value: Cooler weather and fewer tourists mean better deals and a more intimate Alaskan experience.
- Wildlife viewing varies by month: Whale migration peaks in July, while bears are most active in August and September.
- Weather is unpredictable year-round: Pack layers and waterproof gear regardless of the month you choose.
- Shore excursions fill up fast in summer: Book popular tours like glacier hikes or dog sledding well in advance during peak season.
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When Is the Best Month to Do Alaska Cruise?
Planning an Alaska cruise is an exciting adventure, but one of the most important decisions you’ll make is choosing the right time to go. With its dramatic glaciers, towering mountains, abundant wildlife, and charming coastal towns, Alaska offers a once-in-a-lifetime experience—but the timing of your trip can dramatically affect what you see, how comfortable you are, and even how much you pay.
Unlike tropical destinations, Alaska’s cruise season is short, running roughly from May to September. Each month within this window brings its own flavor of beauty and adventure. Whether you’re hoping to spot humpback whales breaching in icy waters, witness brown bears fishing for salmon, or simply enjoy the crisp mountain air without a crowd, there’s a perfect month for your ideal Alaska cruise.
In this guide, we’ll walk you through every month of the Alaska cruise season, breaking down the pros and cons of each so you can confidently choose the best month to do Alaska cruise based on your travel style, budget, and must-see experiences.
The Alaska Cruise Season: A Month-by-Month Breakdown
Alaska’s cruise season is tightly packed into the summer months due to its northern latitude and subarctic climate. The season typically begins in early May and wraps up by late September. While this may seem like a narrow window, each month offers distinct advantages and unique experiences.
Let’s dive into what you can expect month by month, so you can decide which time of year aligns best with your travel goals.
May: The Quiet Start to the Season
May marks the beginning of the Alaska cruise season, and it’s a time of renewal. After a long winter, the landscape awakens with blooming wildflowers, rushing waterfalls, and the return of migratory birds. If you’re looking for a more peaceful, budget-friendly experience, May might be the best month to do Alaska cruise for you.
One of the biggest advantages of cruising in May is the lack of crowds. Most schools are still in session, and summer vacation hasn’t yet begun, so ships are less crowded, and ports like Juneau, Skagway, and Ketchikan feel more relaxed. You’ll have more space on deck, shorter lines at popular attractions, and a greater chance to connect with locals.
Weather in May is cool but pleasant, with daytime temperatures ranging from 45°F to 60°F (7°C to 15°C). While it can still be chilly, especially in the mornings and evenings, the long daylight hours—up to 16 hours of sunlight by the end of the month—give you plenty of time to explore.
Wildlife is also beginning to stir. You might spot bald eagles, sea otters, and harbor seals, and some early-season whale sightings are possible, especially in areas like Icy Strait Point. However, bear activity is still limited, as many are just emerging from hibernation.
Keep in mind that not all shore excursions are available in May. Some popular tours, like glacier hiking or dog sledding on the Juneau Icefield, may not operate until June. Additionally, some smaller shops and restaurants in port towns may still be closed for the winter.
If you’re flexible and don’t mind a few trade-offs, May offers excellent value. Cruise fares are generally lower, and you might find last-minute deals as cruise lines try to fill early-season sailings.
June: The Sweet Spot for Weather and Wildlife
June is widely considered one of the best months to do Alaska cruise, and for good reason. The weather is mild, the days are long, and wildlife is active. It’s the perfect balance of comfort, activity, and natural beauty.
Temperatures in June typically range from 50°F to 65°F (10°C to 18°C), making it comfortable for outdoor activities without the need for heavy winter gear. The sun rises early and sets late—Juneau sees nearly 18 hours of daylight by the summer solstice—giving you ample time to explore glaciers, hike trails, and enjoy scenic cruising through fjords.
Wildlife viewing is excellent in June. Humpback whales are commonly spotted in places like Stephens Passage and Frederick Sound, often putting on acrobatic displays. Orcas, sea lions, and porpoises are also frequently seen. On land, you might catch glimpses of black bears foraging in coastal areas or moose grazing near freshwater lakes.
One of the highlights of a June cruise is the chance to visit Glacier Bay National Park, where massive tidewater glaciers calve icebergs into the sea. The park is at its most accessible during this time, and ranger-led programs on board provide fascinating insights into the region’s geology and ecology.
June also marks the start of the salmon run, which means bears will soon be gathering near rivers. While peak bear activity is still a few weeks away, you might spot them along the shoreline or in protected bays.
Shore excursions are in full swing by June, with options ranging from whale-watching tours and kayaking adventures to train rides on the historic White Pass & Yukon Route. Booking early is recommended, as popular tours fill up quickly.
Crowds begin to increase in June, especially toward the end of the month as school breaks start. However, it’s still less busy than July and August, making it a great compromise between comfort and availability.
July: Peak Season for Families and Adventure
July is the height of the Alaska cruise season, and it’s easy to see why. With school out and families on vacation, cruise ships are bustling, ports are lively, and the weather is at its warmest. If you’re traveling with kids or want the full Alaska experience with all the bells and whistles, July is a top contender.
Temperatures in July average between 55°F and 70°F (13°C to 21°C), making it the warmest month of the season. While it can still rain—Alaska is known for its damp climate—July tends to have the most stable weather, with longer stretches of clear skies and calm seas.
Wildlife is abundant. Humpback whales are frequently seen, and orca pods are more active. Puffins, bald eagles, and sea otters are common sights, and the salmon run is in full swing, drawing bears to riverbanks. In places like Anan Creek or Pack Creek, guided bear-viewing tours offer incredible photo opportunities.
July is also prime time for glacier viewing. Glaciers like Mendenhall near Juneau and Hubbard Glacier near Yakutat are easily accessible, and calving events—where chunks of ice break off into the water—are more frequent due to warmer temperatures.
Shore excursions are plentiful and diverse. You can zipline through the rainforest in Ketchikan, take a helicopter tour to a remote glacier, or ride a dog sled pulled by huskies trained by Iditarod mushers. Many cruise lines offer exclusive summer-only experiences, so check your itinerary for special events.
The downside? July is the busiest month. Ships are at full capacity, ports can feel crowded, and popular tours sell out weeks in advance. Prices are also at their highest, with cruise fares and airfare often peaking.
If you’re flexible with dates, consider traveling in early July to avoid the worst of the crowds. Mid-July tends to be the busiest, especially around the Fourth of July holiday.
August: Fall Colors and Bear Season
August is a favorite among nature lovers and photographers. While the weather begins to cool slightly, the landscape transforms with the first hints of fall color, and wildlife activity reaches a fever pitch—especially for bear watching.
Temperatures in August range from 50°F to 65°F (10°C to 18°C), similar to June, but with more variable weather. Rain is more likely, especially in the southern regions like Ketchikan and Wrangell, so waterproof clothing is essential.
What makes August special is the salmon run. As salmon swim upstream to spawn, brown bears and black bears gather in large numbers along rivers and streams. This is the best time of year to see bears in action, particularly in areas like Pack Creek on Admiralty Island or Anan Wildlife Observatory near Wrangell. Guided bear-viewing tours are highly recommended and often include elevated viewing platforms for safety and optimal photography.
Whale sightings remain strong in August, with humpbacks and orcas still active in coastal waters. Sea lions and harbor seals are also common, and seabird colonies are bustling with activity.
Another highlight of August is the changing foliage. While not as dramatic as in New England, Alaska’s coastal rainforests and tundra begin to show splashes of red, orange, and gold, especially in the interior regions near Skagway and Haines. The contrast between the vibrant colors and the icy blue glaciers creates stunning photo opportunities.
Shore excursions are still widely available, though some high-demand tours may be harder to book. Consider reserving your top choices as soon as your cruise is confirmed.
Crowds begin to thin slightly in late August, making it a good time to enjoy a more relaxed experience while still enjoying peak wildlife and weather.
September: The Quiet End of the Season
September is the final month of the Alaska cruise season, and it offers a unique blend of beauty, solitude, and value. If you’re looking for a more intimate experience with fewer tourists and lower prices, September might be the best month to do Alaska cruise for you.
Weather in September is cooler, with daytime temperatures ranging from 45°F to 60°F (7°C to 15°C). Rain is more frequent, and the first snows can fall in higher elevations, but the crisp air and clear skies often make for stunning scenery.
One of the biggest draws of September is the fall colors. The landscape is awash in golden hues, especially in the Tongass National Forest and along the coast near Haines and Skagway. The contrast between the colorful foliage and the deep blue waters of the Inside Passage is breathtaking.
Wildlife is still active. Bears are busy feeding before hibernation, and whale sightings are possible, though less frequent than in summer. You might also spot migrating birds heading south.
Shore excursions are more limited in September, as some operators close for the season. However, popular tours like whale watching, glacier viewing, and scenic train rides usually continue through mid-September.
Crowds are significantly smaller, giving you more space on the ship and in port towns. You’ll also find better deals on cruises, as lines try to fill last-minute cabins. Airfare may also be cheaper, especially if you avoid the Labor Day weekend.
Keep in mind that daylight hours are shorter—by late September, Juneau gets about 12 hours of daylight—so plan your activities accordingly.
Factors to Consider When Choosing Your Cruise Month
Now that you know what each month offers, how do you decide which is right for you? Here are some key factors to consider when choosing the best month to do Alaska cruise.
Weather and Comfort
Alaska’s weather is famously unpredictable, but general trends can help guide your decision. If you prefer warmer temperatures and longer days, aim for June through August. If you don’t mind cooler weather and want to avoid crowds, May or September may be better.
Always pack layers, including a waterproof jacket, warm fleece, and sturdy walking shoes. Even in summer, temperatures can drop quickly on the water or at higher elevations.
Wildlife Viewing
Your wildlife priorities can heavily influence your choice. For whales, July is ideal. For bears, August and September are best. If you’re hoping to see puffins, June and July offer the highest chances, as they nest on coastal cliffs during those months.
Research specific wildlife hotspots along your itinerary and time your visit accordingly. For example, if your cruise includes a stop in Ketchikan, August is prime time for bear viewing at nearby Anan Creek.
Crowds and Pricing
Peak season (July and August) means higher prices and more people. If budget is a concern, consider May or September, when cruise fares are lower and promotions are more common.
Keep an eye on airfare, too. Flights to Seattle or Vancouver—common departure cities for Alaska cruises—can be expensive in summer. Booking early or traveling in the shoulder months can save you hundreds.
Shore Excursions and Availability
Some excursions, like dog sledding on a glacier or helicopter tours, are weather-dependent and may not operate in early or late season. Check with your cruise line to see which tours are available during your chosen month.
Popular excursions—especially bear-viewing tours and whale-watching trips—sell out quickly in summer. Book as soon as your cruise is confirmed, or consider pre-booking through third-party providers.
Photography and Scenery
If you’re a photographer, consider the lighting and landscape. June offers long golden-hour light, while September provides dramatic fall colors. August combines lush greenery with active wildlife, making it a favorite for nature photographers.
Tips for Making the Most of Your Alaska Cruise
No matter which month you choose, a few smart strategies can enhance your Alaska cruise experience.
Book Early for the Best Deals and Options
The earlier you book, the more choices you’ll have in terms of cabin type, itinerary, and shore excursions. Many cruise lines offer early-bird discounts, and popular sailings—especially in July—can sell out months in advance.
Pack Smart for Variable Weather
Even in summer, Alaska can be chilly and wet. Bring a waterproof outer layer, thermal base layers, gloves, and a warm hat. Don’t forget binoculars for wildlife spotting and a good camera with extra batteries.
Stay Flexible with Your Itinerary
Weather can impact your cruise schedule. Glaciers may be obscured by fog, or rough seas might delay port arrivals. Embrace the unpredictability—it’s part of the Alaskan adventure.
Respect Wildlife and the Environment
Alaska is a pristine wilderness. Follow guidelines for wildlife viewing, stay on marked trails, and avoid disturbing animals. Many cruise lines partner with conservation groups, so consider supporting their efforts.
Try Local Cuisine
Don’t miss out on Alaskan specialties like fresh salmon, king crab, and reindeer sausage. Many ports have local restaurants and markets where you can sample regional flavors.
Conclusion
So, when is the best month to do Alaska cruise? The answer depends on what you’re looking for. If you want warm weather, long days, and peak wildlife, June through August are ideal. For fewer crowds, lower prices, and a more intimate experience, consider May or September. August stands out for bear viewing and fall colors, while July offers the full summer spectacle.
Ultimately, there’s no wrong time to visit Alaska—each month offers its own magic. By understanding the seasonal differences and aligning them with your travel goals, you can choose the perfect time for your Alaskan adventure. Whether you’re marveling at a calving glacier, spotting a humpback whale, or sipping coffee in a quiet port town, an Alaska cruise is an experience you’ll cherish forever.
Frequently Asked Questions
What is the best month to see whales on an Alaska cruise?
July is the best month to see whales, especially humpbacks and orcas, as they are most active during the peak of the salmon run. June and August also offer excellent whale-watching opportunities.
Can you see bears on an Alaska cruise in May?
Bear sightings are less common in May, as many are still emerging from hibernation. However, you might spot them along coastlines or in early feeding areas, especially in late May.
Is it safe to cruise Alaska in September?
Yes, September is a safe and beautiful time to cruise Alaska. While weather is cooler and some tours may be limited, the scenery is stunning, and wildlife is still active.
Are Alaska cruises crowded in June?
June sees moderate crowds, with numbers increasing toward the end of the month. Early June is less busy than July, making it a good balance of weather and availability.
What should I pack for an Alaska cruise in August?
Pack layers, including a waterproof jacket, warm fleece, gloves, and sturdy shoes. Binoculars and a camera are also essential for wildlife and scenery.
Do I need to book shore excursions in advance?
Yes, especially for popular tours like bear viewing, glacier hikes, and dog sledding. These often sell out weeks in advance, particularly during peak season.