The best time to cruise to Alaska: Our expert tips when to go

The Alaska cruise season lasts just a few months between May and September, but is there a best time to book that cruise?

Some cruisers prefer the warmest temperatures of July and August, while others will tell you early or late gets you the cheapest prices.  And yet, rain, mosquitos, and crowds can diminish the benefit of each month.

Our team has collectively sailed to Alaska dozens of times, and we've found there is a good argument for each month that depend on your priorities.

Each month has an advantage, but the ideal month to pick has to balance what you want the most versus the downsides.

Here's what you should know about the best month to cruise Alaska for you.

The best month for an Alaskan cruise depends on what you want the most

The perfect month for an Alaska cruise is really based on what factors are the most important to you.

It's a myth there is one single month that is universally the best month for an Alaska cruise.

Instead, you have to prioritize what's important to you.

Next, let's look at what each month offers as a good reason to sail then.

Lower prices if you sail in the shoulder season

Royal Caribbean calls the early and late months the shoulder season, because they have less demand than the peak of a season and act like a shoulder to building or lessening demand.

By far the cheapest Alaska cruises are almost always found in May, early June, and September. You could save hundreds or thousands of dollars if you take a cruise then instead of July.

These months are cheapest because it's when school is in session and families cannot go on a cruise vacation yet. That also means less crowds in the ports you're visiting.

However, these months are also the coldest months of the season in Alaska because they are at the very start or end of Alaska's short summer.

Another advantage of going in May or early June is it tends to be driest month. Regardless of any other factor, no one likes getting rained on during their day out and about.

What is the best month for seeing animals?

If your goal is to go whale watching, see sea lions, bears, & birds, then certain months are going to be better than others.

To be clear, you'll see plenty of animals around any month. Bald Eagles are particularly prevalent throughout the season.

But bear season differs from moose, humpback whale season, and salmon season has a late start.

The peak of bear-watching is late June or early July. 

There are multiple types of salmon, each with their own best time.  The most popular time is when the salmon swim upstream.  King salmon runs start in late May and the season runs through September.

June and July is when the humpback whales migrate through Alaska's Inside Passage.

The warmest months in Alaska

If enjoying the best temperatures is important to you, then I would pick late June through mid August.

Alaska weather is anything but predictable, but we typically see a significant warming trend right around July. Mid to late June is when we start to see temperatures climb, and July is the peak of summer when you t-shirts (and even shorts) are "in bloom".

The hotter temperatures continue into August and start to slide off by the time you get through the middle of the month.

However, the downside to a July or August Alaska cruise is you'll pay much more and contend with the worst crowds of the season.

A cruise in July to Alaska can see prices start at $1,000 per person for a 7-night sailing in an inside room. 

For example, Anthem of the Seas has a 7-night cruise from Seattle to Alaska, and an inside room is $1,350 per person, but a balcony room is $2,101 per person.

Since school is out of session, you'll find more families and kids. That means bigger crowds when you're ashore and more people touring.

What cruisers say is the best time to go on Alaska cruise

When the question of the best time of year was asked on Facebook, over 70 responses were shared from people that have gone there. Here's what they said.

The month with the most votes was August, which dominated the results. It had more than July and September combined. 

Moreover, July and August together received the most overwhelming majority of “favorite” responses.

The people that voted for May and June cited solid niche appeal, for being able to see snow, enjoy quieter ports, and take advantage of shoulder season value.

September shows strong support from travelers who like fewer crowds and fall colors.

The worst months to cruise to Alaska

There are downsides to any month to cruise to Alaska, but the end of the season is generally considered the least favorable time to go.

Royal Caribbean offers cruises in September (and sometimes into October), but this is when you'll encounter colder temperatures and more rain.

Cruising to Alaska in September sees some of the highest precipitation all year, although there’s a higher chance of nicer weather during the first half of the month. Temperatures average in the mid-50s and lows in the low-40s. 

October is perhaps the worst month to cruise to Alaska. Not only is October the rainiest month, but days are far shorter than during the summer, and the average high is under 50 degrees Fahrenheit.

Despite the colder temperatures and rain, I'd be willing to bet you'll find amazing Alaska cruise deals if you wait and sail in September.

If you're feeling lucky, I've seen the most last-minute deals for cruises in September than any other Alaska cruise month.

Month-by-month guide to Alaska

This table illustrates quickly the advantages of each month to cruise to Alaska.