Average Sunshine in Alaska for September

Number of Sunny Days

In the tables below, the average number of Sunny Days for a place in Alaska is the total days this month when the sky is mostly clear. This includes the days when cloud covers up to 30% of the sky during daylight hours.

Partly Sunny Days have cloud covering from 40% to 70% of the sky during the daytime. The rest of the days during September are mainly overcast, with at least 80% cloud cover. Total Days With Sun is a sum of the Sunny plus Partly Sunny days. All the numbers are averages, made from years of weather watching, for total days in the month.

You can jump to a separate table for each region of the state: Southeast, South - Central, Southwest and Far North Alaska.

Southeast Alaska

Average days of sunshine in September
Place Sunny Partly Sunny Total Days
With Sun
Annette Island 4 6 10
Juneau 3 3 6
Yakutat 3 4 7

South - Central Alaska

Days in September with sunshine
Place Sunny Partly Sunny Total Days
With Sun
Anchorage 4 5 9
Fairbanks 4 6 10
Gulkana 6 8 14
Homer 5 7 12
Talkeetna 5 4 9
Valdez 4 5 9

Southwest Alaska

Sunny days in September
Place Sunny Partly Sunny Total Days
With Sun
Bethel 2 5 7
Cold Bay 0 4 4
King Salmon 2 6 8
Kodiak 4 7 11
McGrath 3 5 8
St Paul Island 1 5 6

Far North Alaska

Number of days with sun in an average year
Place Sunny Partly Sunny Total Days
With Sun
Barrow 1 3 4
Bettles 7 7 14
Kotzebue 6 5 11
Nome 5 6 11

Amount of Sun

Here's another way to look at how much sunshine a place gets. The % Sun number measures the percentage of time between sunrise and sunset that sunshine reaches the ground. Again, these amounts are monthly averages based on many years of weather observations.

Percent sunshine for September
Place % Sun
Anchorage 38
Juneau 26
Nome 36

National Climatic Data Center. Comparative Climatic Data.

Alaska Sunshine
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