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Alaska weather

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EuropeanECMWF
35°
Overcast
Feels 25° · Wind 13 mph · Humidity 65%
AmericanNOAA GFS
35°
Overcast
Feels 25° · Wind 13 mph · Humidity 77%
GermanDWD ICON
39°
Overcast
Feels 31° · Wind 8 mph · Humidity 72%

Latest for Alaska: European (ECMWF): 35° Overcast · American (NOAA GFS): 35° Overcast · German (DWD ICON): 39° Overcast.

The weather map: all three models at once

European, American, German side by side around Alaska and nearby towns.Live rain radar →
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Hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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10-day forecast, out to 14 days

where the models agree, and where they split

Heading to Alaska? Alaska, USA, sits at 61.2°N in a cool, high-latitude climate zone. The averages on this page are measured at Anchorage, the main gateway for US travellers; inland and mountain areas run cooler. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Alaska right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.

Best time to visit Alaska

The most comfortable time to visit Alaska is usually June, July and August, when daytime highs sit in the pleasant 60-78°F range and the heaviest September rain is behind you.

Alaska weather by month

what to expect in Alaska through the year, 1991-2020 normals, Anchorage Intl AP (WMO)

Here is Alaska's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Alaska by season.

Jan
23°
11°
Cold
Feb
27°
15°
Cold
Mar
33°
19°
Cold
Apr
45°
30°
Cool
May
56°
40°
Cool
Jun
63°
48°
Mild
Jul
66°
53°
Mild
Aug
64°
51°
Mild
Sep
56°
43°
Cool
Wettest
Oct
42°
31°
Cool
Nov
29°
18°
Cold
Dec
25°
14°
Cold

Alaska compared with New York City

30-year averages: daytime highs month by month, rain and sunlight

Cooler through the year

−19°F

average daytime high: Alaska 44°F, New York City 63°F

Rain over a year

−68%

Alaska 16 in, New York City 50 in

Sunlight vs a clear sky

61% vs 72%

solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)

AlaskaNew York Cityaverage daytime high, °F, 1991-2020
January, New York City: 40°FJanuary, Alaska: 23°F (−17°F)February, New York City: 42°FFebruary, Alaska: 27°F (−15°F)March, New York City: 50°FMarch, Alaska: 33°F (−17°F)April, New York City: 62°FApril, Alaska: 45°F (−17°F)May, New York City: 71°FMay, Alaska: 56°F (−15°F)June, New York City: 80°FJune, Alaska: 63°F (−17°F)July, New York City: 85°FJuly, Alaska: 66°F (−19°F)August, New York City: 83°FAugust, Alaska: 64°F (−19°F)September, New York City: 76°FSeptember, Alaska: 56°F (−20°F)October, New York City: 65°FOctober, Alaska: 42°F (−23°F)November, New York City: 54°FNovember, Alaska: 29°F (−25°F)December, New York City: 44°FDecember, Alaska: 25°F (−19°F)

On 30-year averages Alaska runs 19°F cooler than New York City, with every month between −25°F and −15°F. Over a year it gets 68% less rain than New York City.

Month by month in numbers
MonthAlaskaNew York CityDifferenceSunlight, AlaskaSunlight, New York City
January23°F40°F−17°F57%68%
February27°F42°F−15°F59%71%
March33°F50°F−17°F68%69%
April45°F62°F−17°F70%71%
May56°F71°F−15°F66%70%
June63°F80°F−17°F65%76%
July66°F85°F−19°F63%80%
August64°F83°F−19°F63%78%
September56°F76°F−20°F61%76%
October42°F65°F−23°F55%71%
November29°F54°F−25°F55%72%
December25°F44°F−19°F56%66%

Daytime highs and lows on this page are 1991-2020 averages. Alaska: station normals from Anchorage Intl AP (WMO), rain included. New York City: station normals from New York Central Park (WMO), rain included. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. New York City stands in for the US here; other cities have their own climate tables.

Common questions

When is the best time to visit Alaska?
The most comfortable time to visit Alaska is usually June, July and August, when daytime highs sit in the pleasant 60-78°F range and the heaviest September rain is behind you.
Will it rain in Alaska during my trip?
Rain is where forecasts disagree most. Instead of trusting one app, the comparison above lines up the European, American and German models for Alaska - check your dates and look for the days they agree; those are the ones you can plan around.
Which forecast is most accurate for Alaska?
For destinations abroad we compare three open global models (ECMWF, GFS and ICON) and show you where they disagree, so you can judge the confidence yourself.
How much warmer is Alaska than New York City?
On 30-year averages (1991-2020) the daytime high in Alaska is about 19°F cooler than in New York City (44°F against 63°F), with the monthly gap between -25°F and -15°F.

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