Alaska Weather & Climate

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Alaska weather and daylight varies wildly by region and season.

Use our charts to see what the weather will be like during your Alaska vacation.

Alaska shows off its fall colors

Photo Credit: Bob Kaufman

Alaska Travel Tips

Quick: What are the four seasons in Alaska? Answer: Winter, June, July, and August. That timeworn classic is only partially true--May and September can also be great summer months.

Alaska weather and daylight varies wildly by region and season, from short-sleeves in summer to down jackets in winter; from 7 rainy days in May in Southcentral to 17 rainy days in the Inside Passage. Find out for yourself by reviewing the table below, comparing Alaska's weather to your hometown, or using our daylight calculator.

Summer daytime temperatures range from 55° - 70° F, but you'll feel warmer due to long hours of direct sunlight. Still, know what to wear in Alaska and dress in layers. Also know that the weather gets rainier as summer progresses. Read about the best time to visit Alaska based on all these factors.

Southcentral

More About This Region

The region you'll visit on an Alaska land tour. Includes Anchorage, Seward, Denali National Park & Fairbanks.

Month	Hi (F°)	Low (F°)	Daylight Hours	Sunset	Rainy Days	Clear Days
May	54	39	17 hours	10:42 pm	7 days	11 days
June	62	47	19 hours	11:40 pm	8 days	10 days
July	65	51	18 hours	11:17 pm	12 days	9 days
August	63	48	15.5 hours	9:57 pm	14 days	9 days
September	55	41	12.5 hours	8:20 pm	14 days	10 days

Inside Passage

More About This Region

The region you'll visit on an Alaska Cruise or Ferry Vacation. Includes Juneau, Skagway, Sitka & Ketchikan.

Month	Hi (F°)	Low (F°)	Daylight Hours	Sunset	Rainy Days	Clear Days
May	55	38	16.5 hours	9:18 pm	17 days	8 days
June	60	45	18.1 hours	10:04 pm	15 days	7 days
July	64	48	17.3 hours	9:47 pm	17 days	8 days
August	62	47	15.2 hours	8:39 pm	18 days	9 days
September	55	43	12.4 hours	7:13 pm	20 days	6 days

Far North / Arctic

More About This Region

This region is only accessible by plane. Most visitors fly to the Arctic from Fairbanks. Includes Nome, Gates of the Arctic National Park, Barrow

Month	Hi (F°)	Low (F°)	Daylight Hours	Sunset	Rainy Days	Clear Days
May	24	14	23 hours	N/A	4 days	3 days
June	38	30	24 hours	N/A	5 days	3 days
July	45	33	24 hours	N/A	9 days	3 days
August	42	33	19 hours	11:44 pm	11 days	1 day
September	34	27	13 hours	8:59 pm	11 days	1 day

Southwest

More About This Region

Home to Kodiak and the Aleutian Islands, this region is accessible by plane or ferry. Also includes Katmai National Park and Lake Clark National Park, popular bear viewing locations

Month	Hi (F°)	Low (F°)	Daylight Hours	Sunset	Rainy Days	Clear Days
May	49	37	16.4 hours	10:28 pm	17 days	8 days
June	56	44	18 hours	11:13 pm	15 days	9 days
July	60	48	17.2 hours	10:57 pm	15 days	9 days
August	62	48	15.1 hours	9:52 pm	14 days	11 days
September	57	43	12.4 hours	8:27 pm	16 days	11 days