Juneau

Alaska Weather & Climate: the United States of America

Climate by month across Alaska, the United States of America, average temperatures, rainfall and the best time to visit.

Climate overview of Alaska

Alaska in the United States of America sees its peak temperatures in July (18°C (64°F)) and its coolest in January (-4°C (25°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Anchorage, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

In Alaska, no particular months stand out for consistently comfortable weather, as average temperatures fluctuate year-round.

The colder months are generally January, February, March, April, October, November and December.

Precipitation in Alaska varies considerably throughout the year. The wettest conditions occur in September with 130 mm (5.1 in) of rain, while May stays relatively dry with 39 mm (1.5 in).

For those seeking sunshine, May usually has the brightest skies, making it an excellent time for exploring the region.

Explore Alaska by month

Pick a month to see the average temperature, rainfall and sunshine in Alaska — and find the best time to visit. (based on Anchorage)

Popular cities by month

Compare cities per month. Toggle cities on/off.

Anchorage Fairbanks Juneau Kenai Soldotna Ketchikan
Day temperature (°C)
Monthly rainfall (mm)
Monthly sunshine (hours)

Climate map of Alaska

Average daily temperature, monthly rainfall & sunshine hours across cities.

Avg day temp (°C)
32°

Compare popular cities

Average daytime and nighttime temperatures, yearly rainfall and sunshine.

Anchorage -5°C (23°F) 18°C (64°F) -10°C (14°F) 12°C (54°F) 900 mm (35 in) 2,069 hours
Fairbanks -15°C (5°F) 23°C (73°F) -23°C (-9°F) 13°C (55°F) 415 mm (16 in) 2,113 hours
Juneau -2°C (28°F) 14°C (57°F) -7°C (19°F) 8°C (46°F) 2887 mm (114 in) 1,549 hours
Kenai -2°C (28°F) 17°C (63°F) -7°C (19°F) 12°C (54°F) 918 mm (36 in)
Soldotna -3°C (27°F) 19°C (66°F) -9°C (16°F) 12°C (54°F) 904 mm (36 in)
Ketchikan 4°C (39°F) 17°C (63°F) 0°C (32°F) 13°C (55°F) 3421 mm (135 in) 1,292 hours

Places in Alaska, the United States of America

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.