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Weather in Anchorage for September 2025

Your guide to Anchorage weather in September - trends and predictions
  • In general, the average temperature in Anchorage at the beginning of September is 13.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8.7 °F by the end of September.

  • The climate of Anchorage in September is notably wet, with an average of 14 rainy days.

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Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/6°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Anchorage in September average weather

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Temperatures trend during September in Anchorage

See the weather trend as well as the moving average line

September weather day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Light rain shower
Light rain shower
14° /10° 1 mm 3
Sept. 2 Patchy rain possible
Patchy rain possible
13° /9° 1.5 mm 3
Sept. 3 Light drizzle
Light drizzle
14° /10° 2.6 mm 4
Sept. 4 Light rain
Light rain
14° /9° 4 mm 4
Sept. 5 Light drizzle
Light drizzle
12° /9° 3.5 mm 3
Sept. 6 Patchy rain possible
Patchy rain possible
13° /9° 1.1 mm 3
Sept. 7 Light rain shower
Light rain shower
12° /8° 7.5 mm 3
Sept. 8 Light rain
Light rain
12° /8° 4.1 mm 3
Sept. 9 Moderate rain
Moderate rain
12° /8° 9.7 mm 3
Sept. 10 Overcast
Overcast
12° /8° 1.9 mm 3
Sept. 11 Light drizzle
Light drizzle
11° /8° 5.2 mm 3
Sept. 12 Overcast
Overcast
11° /7° 2.4 mm 3
Sept. 13 Overcast
Overcast
11° /7° 0.5 mm 3
Sept. 14 Overcast
Overcast
11° /6° 3.1 mm 3
Sept. 15 Overcast
Overcast
12° /7° 2.9 mm 3
Sept. 16 Overcast
Overcast
11° /7° 0.6 mm 3
Sept. 17 Overcast
Overcast
11° /7° 0.1 mm 3
Sept. 18 Light drizzle
Light drizzle
9° /6° 4.8 mm 3
Sept. 19 Overcast
Overcast
10° /5° 0.1 mm 3
Sept. 20 Light rain shower
Light rain shower
10° /6° 4.8 mm 3
Sept. 21 Patchy rain possible
Patchy rain possible
8° /3° 0.7 mm 3
Sept. 22 Overcast
Overcast
9° /3° 0.1 mm 2
Sept. 23 Overcast
Overcast
10° /4° 0.3 mm 3
Sept. 24 Cloudy
Cloudy
9° /4° 0.9 mm 2
Sept. 25 Partly cloudy
Partly cloudy
9° /4° 0 mm 3
Sept. 26 Cloudy
Cloudy
9° /5° 0.1 mm 2
Sept. 27 Overcast
Overcast
8° /4° 0.1 mm 2
Sept. 28 Partly cloudy
Partly cloudy
8° /3° 0 mm 3
Sept. 29 Overcast
Overcast
9° /4° 0 mm 3
Sept. 30 Patchy rain possible
Patchy rain possible
9° /4° 0.1 mm 2
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Important Notice
Our weather forecast for Anchorage in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Anchorage forecast closer to your planned date for the most up-to-date weather information.

Anchorage in September - FAQ

What are the expected maximum and minimum temperatures in Anchorage during September?
During September, expect a variety of temperatures with highs around 10° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Anchorage during September?
Moderate rainfall is anticipated in Anchorage during September, with a total of 71.3 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Anchorage during September?
The average wind speed in Anchorage during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Anchorage

Explore the daily rainfall trends and prepare for Anchorages September weather 💧

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Location coordinates Where is Anchorage?

Get accurate weather forecasts for Anchorage, located at latitude 61.218 and longitude -149.9. Stay updated with localized weather information tailored for Anchorage.

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