Weather in Anchorage, Alaska for September 2025
Until now, September 2025 in Anchorage has been nearly identical to the historical average, with a temperature of 13.5 °F (showing only a slight deviation of 0.5 °F).
Expect cooler weather in the next days in Anchorage with the forecast suggesting a temperature of 10.8 °F, lower than the historical average.
In general, the average temperature in Anchorage at the beginning of September is 13.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.3 °F by the end of September.
Anchorage in September brings notable rainfall, with an average of 17 rainy days and a total precipitation of 63.8 mm.
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Anchorage Weather September
Temperatures trend during September in Anchorage
September weather in Anchorage day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 14° /10° | 0.7 mm | 4 | |
| Sept. 2 | Patchy rain possible | 14° /10° | 1.9 mm | 3 | |
| Sept. 3 |  Light drizzle | 15° /10° | 3.5 mm | 4 | |
| Sept. 4 | Light rain | 14° /10° | 3 mm | 3 | |
| Sept. 5 | Light drizzle | 13° /9° | 3.5 mm | 3 | |
| Sept. 6 | Patchy rain possible | 13° /9° | 1.7 mm | 3 | |
| Sept. 7 | Light rain shower | 12° /8° | 5.2 mm | 3 | |
| Sept. 8 | Light rain | 12° /8° | 3.1 mm | 3 | |
| Sept. 9 |  Moderate rain | 12° /8° | 7.7 mm | 3 | |
| Sept. 10 |  Overcast | 13° /8° | 1.8 mm | 3 | |
| Sept. 11 | Light drizzle | 11° /8° | 3.8 mm | 3 | |
| Sept. 12 | Overcast | 10° /7° | 4 mm | 3 | |
| Sept. 13 | Patchy rain possible | 10° /6° | 3.3 mm | 0.3 | |
| Sept. 14 |  Partly cloudy | 11° /5° | 0 mm | 0.5 | |
| Sept. 15 | Overcast | 10° /6° | 0 mm | 0.3 | |
| Sept. 16 | Patchy rain possible | 14° /8° | 0.6 mm | 0.3 | |
| Sept. 17 | Patchy rain possible | 13° /8° | 5 mm | 0 | |
| Sept. 18 | Patchy rain possible | 12° /8° | 0 mm | 2 | |
| Sept. 19 | Patchy rain possible | 11° /8° | 0.4 mm | 2 | |
| Sept. 20 | Patchy rain possible | 10° /8° | 0.5 mm | 2 | |
| Sept. 21 | Patchy rain possible | 10° /8° | 0.6 mm | 2 | |
| Sept. 22 | Patchy rain possible | 10° /8° | 0.2 mm | 2 | |
| Sept. 23 | Patchy rain possible | 9° /9° | 1.1 mm | 2 | |
| Sept. 24 | Partly cloudy | 11° /7° | 0 mm | 3 | |
| Sept. 25 | Partly cloudy | 11° /6° | 0 mm | 3 | |
| Sept. 26 |  Cloudy | 9° /6° | 0.1 mm | 2 | |
| Sept. 27 | Overcast | 8° /4° | 0.1 mm | 2 | |
| Sept. 28 | Partly cloudy | 8° /3° | 0 mm | 3 | |
| Sept. 29 | Overcast | 9° /4° | 0 mm | 3 | |
| Sept. 30 | Patchy rain possible | 9° /4° | 0.1 mm | 2 | |
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Anchorage in September - FAQ
September rainfall patterns in Anchorage
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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.