Why You Should Cruise to Alaska During the Summer

Midnight Sun, Wildlife Wonders and Glacier Views in One Epic Journey

By Élise Fenwick | Published: August 16, 2023 | Updated: March 9, 2026

If you want a taste of Alaska during the summer, picture long golden days where the sun barely sets, wildlife sightings that rival national documentaries and ever-changing landscapes of fjords, towering glaciers and old-growth forests. That’s just the beginning of what makes a trip idea like an Alaska summer cruise so great. 

The Alaska summer season is alive with outdoor activity and opportunity, and cruising is the best way to take it all in. This guide explores everything from seasonal highlights and Alaska weather insights to top itineraries and expert planning tips.

What Is Alaska Like in the Summer?

Alaska in the summer is a land of contrasts in the United States: midnight sun and misty fjords, snow-capped mountains and blooming tundra. From May through August, Alaska comes alive with vibrant energy.

Long Days and the Midnight Sun

One of the most unique aspects of the Alaska summer season is the daylight. In the peak months of June and July, parts of the state enjoy up to 22 hours of sunlight each day. On the summer solstice, 24 hours of daylight are possible in areas like Fairbanks, Alaska. This phenomenon — known as the Midnight Sun — gives guests more time to explore and take in the awe-inspiring scenery.

With daylight that lasts nearly all night, every hour becomes a chance for adventure. Excursions stretch into the evening, and this extended daylight makes photography, hiking and sightseeing more immersive. In towns like Juneau and Skagway, twilight doesn’t come until almost midnight.

Wildlife Viewing and Natural Phenomena

Summer is the prime time for wildlife enthusiasts to visit Alaska. The region’s vast, protected wilderness areas make it a haven for animals roaming the rugged mountains, vast glaciers, boreal forests and long coastline. 

A summer cruise to Alaska opens up incredible opportunities to witness:

Whale Sightings (May–August)

Alaska’s summer waters draw migrating humpback whales and orcas, often spotted breaching, tail-slapping or feeding in pods near cruise routes — especially around Icy Strait Point and Juneau. Humpbacks journey thousands of miles from Hawaii to feast here, making summer the perfect time for whale watching from the deck or on an excursion.

Bear Viewing (Late June–August)

Salmon season draws brown and black bears to rivers across Alaska. Watch grizzlies fish along riverbanks in places like Katmai National Park, Admiralty Island (the "Fortress of the Bears") or the forests near Sitka and Ketchikan. Guided excursions often provide safe, elevated platforms for unforgettable views.

Bald Eagles (Year-round)

Bald eagles are easy to spot in Alaska, perched in tall trees or soaring along the coast. While peak gatherings occur in fall near Haines’ Chilkat Bald Eagle Preserve, summer cruises still offer plenty of sightings in areas like Skagway and Misty Fjords — sometimes dozens in a single tree.

Harbor Seals (Year-round)

Look for harbor seals lounging on icebergs or rocky ledges near glacier-fed bays like Tracy Arm. Shy but curious, they often pop their heads above the water near ships. Spring and early summer are ideal for spotting mothers with pups, especially during morning kayak outings.

Moose (Year-round)

Moose roam Alaska’s wetlands and forest edges, especially in summer when calves are born in late May. Watch for them near lakes, rivers or trails in Chugach State Park, Potter Marsh or Denali National Park. A glimpse of a mother and calf crossing the water is a true Alaska moment.

Glacier calving (May–September)

Watch — and hear — massive chunks of ancient ice dramatically crash into the sea. Hubbard Glacier is one of the best spots to witness this thrilling display. Summer offers prime viewing, complete with cracking ice, thunderous splashes and floating mini icebergs.

Explore the Inside Passage to see these spectacular displays from your ship or excursion.

Why a Cruise Is the Best Way to Explore Alaska in Summer

Cruising unlocks the true magic of Alaska by offering seamless access to hard-to-reach places, maximum comfort and a front-row seat to nature’s most stunning displays.

Access Remote Destinations You Can’t Reach by Road

Much of the coastal areas of Alaska are inaccessible by car or train, but cruising along the Inside Passage route delivers passengers to these remote gems with the ease of onboard comfort.

A cruise lets you glide into spectacular areas like:

Tracy Arm Inlet

Sailing through Tracy Arm Fjord feels like entering a natural cathedral. Towering granite cliffs, cascading waterfalls and floating ice set a dramatic scene. The highlights include the twin Sawyer Glaciers, known for vivid blue ice and frequent calving. Watch for harbor seals on the ice and mountain goats or bald eagles on the cliffs.

Hubbard Glacier

Stretching 76 miles long and 6 miles wide, Hubbard Glacier is the largest tidewater glacier in North America. Nicknamed the “galloping glacier” for its active calving and rapid movement, it puts on a powerful show. As your ship enters Disenchantment Bay, massive chunks of ice often crack and thunder into the sea — an unforgettable experience.

Ketchikan

Dubbed “Alaska’s First City,” Ketchikan blends frontier charm with rich Indigenous heritage. Explore the Totem Heritage Center or stroll colorful Creek Street. In summer, watch salmon leap upstream during spawning season — a lively spectacle in this fishing capital.

Tiny Remote Villages

Alaska cruises offer rare access to roadless coastal communities. At Icy Strait Point near the Tlingit village of Hoonah, you’ll find Native-run Alaska tours, traditional dance and storytelling. These quiet stops give a glimpse into authentic Alaska life far from the crowds.

Best Alaska Summer Cruise

Adventure meets serenity in the Alaska summer season, and the right cruise helps you make the most of every moment.

Spectacular Itineraries

With Royal Caribbean’s Alaskan cruises, guests can choose from:

● Seven-night round-trip cruises from Seattle or Vancouver.

● Northbound/southbound sailings from Seward to Vancouver — or reverse.

● Stops in Juneau, Skagway, Sitka and more.

● Scenic cruising days by Hubbard Glacier or Tracy Arm Fjord.

Scenic Sailing

Royal Caribbean ships are built to make the scenery part of your journey:

● Ovation of the Seas (Quantum Class): Features the North Star — an observation capsule that lifts you high above the ship for panoramic views.

● Radiance Class ships: The floor-to-ceiling windows and glass elevators on these ships make glacier viewing effortless.

When to Cruise Alaska in Summer

When is summer in Alaska? The prime Alaska summer season runs from May through August. Here’s what to expect from each summer month in Alaska:

● Alaska in May: Enjoy quiet trails, fewer crowds and early Alaska summer season pricing.

● Alaska in June: Expect maximum daylight hours and great wildlife viewing.

● Alaska in July: July is the warmest month, meaning there’s a multitude of things to do in Alaska in July, making it the perfect month for family travel.

● Alaska in August: While there’s more rain in August, the extra moisture makes for incredibly lush landscapes full of wildlife and end-of-summer deals to boot.