When is the best time to visit Alaska?

The best time to visit depends on where you go. Denali National Park: June & April; Fairbanks: June & May; Glacier Bay National Park: June & July; Homer: June; Katmai National Park: June & July; Kenai Fjords National Park: June & July.

Which month is best overall in Alaska?

Averaged across our 13 destinations in Alaska, the strongest months are June. Individual places can shift a month or two earlier or later — each destination page lists its own peak.

How are the Alaska travel scores calculated?

Every city is rated 0-10 per month using ERA5 climate normals - temperature, precipitation, humidity, daylight, and days with 6+ hours of sunshine.

Best Time to Visit Alaska: Weather by Month

01 · Alaska

About Alaska

Alaska is too large for a single checklist, so build a trip around one region and its transport realities. Southcentral routes combine Anchorage, the Kenai Peninsula, and glacier access; the Interior centers on Fairbanks and Denali; Southeast travel relies heavily on ferries, aircraft, and cruise routes. June through August is the broadest window for long daylight and visitor services, with May and September offering useful shoulder-season tradeoffs. Distances, weather, wildfire smoke, and limited capacity can disrupt a tight itinerary, so leave recovery time between major transfers.

Did you know?

Alaska is the largest US state, covering more land than Texas, California and Montana combined.
It has more coastline than all the other US states put together.
Denali, at 6,190 metres, is the highest peak in North America.

Weather

Alaska: weather by month

Warmest month: July (10°C). Wettest: September (296 mm). Best overall score: June (7.1/10).

Month	Avg temp	Rain	Sunny days	Score
January	-7°C	264 mm	0	0.2/10
February	-6°C	202 mm	1	1.1/10
March	-5°C	183 mm	3	2.0/10
April	-2°C	136 mm	14	4.5/10
May	3°C	177 mm	19	5.7/10
June	8°C	141 mm	21	7.1/10
July	10°C	194 mm	17	6.5/10
August	10°C	269 mm	11	5.5/10
September	6°C	296 mm	2	3.7/10
October	0°C	283 mm	1	2.0/10
November	-5°C	240 mm	1	0.6/10
December	-6°C	260 mm	0	0.2/10

Travel Tips

01Plan ahead for Alaska: Check local weather forecasts and seasonal daylight hours before traveling to Alaska.
02Best time & timing: The strongest months are June, July, May: June peaks at 7.1/10, while December drops to 0.2/10.
03Weather & what to pack: 8°C and 141 mm of rain shape a typical June here. Pack a mid-weight jacket and shoes you can walk in all day.

Things to do in Alaska

Alaska. Live activities and tours from GetYourGuide, matched to this destination.

FAQ

Frequently asked

When is the best time to visit Alaska?: The best time to visit depends on where you go. Denali National Park: June & April; Fairbanks: June & May; Glacier Bay National Park: June & July; Homer: June; Katmai National Park: June & July; Kenai Fjords National Park: June & July.
Which month is best overall in Alaska?: Averaged across our 13 destinations in Alaska, the strongest months are June. Individual places can shift a month or two earlier or later — each destination page lists its own peak.
Which cities in Alaska does bestime.to cover?: We currently score 13 destinations in Alaska: Denali National Park, Fairbanks, Glacier Bay National Park, Homer, Katmai National Park, Kenai Fjords National Park, Ketchikan, Kodiak, Mendenhall Glacier, Seward, +3 more.
How are the Alaska travel scores calculated?: Every city is rated 0-10 per month using ERA5 climate normals - temperature, precipitation, humidity, daylight, and days with 6+ hours of sunshine.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

Curated in Alaska