Sitka (AK)
September
Weather in Sitka, Alaska for September 2027
Your guide to Sitka weather in September - trends and predictions
In general, the average temperature in Sitka at the beginning of September is 13.8 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9 °C by the end of September.
Sitka in September brings notable rainfall, with an average of 20 rainy days and a total precipitation of 580.9 mm.
Is September a good time to visit Sitka? check out the best time to travel to Sitka page.
✨ Is September a good time to visit Sitka? – Ask the AI Weatherman
Temperatures
Rain 🌧️
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10
Dry days
20
Rainy days
0
Snow days
12°/9°
Temperatures
13 km/h
Avg max wind
88 %
Avg humidity
Sitka Weather September
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Temperatures trend during September in Sitka
See the weather trend as well as the moving average line
September weather in Sitka day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain | 13° /10° | 3.1 mm | 2 | |
| Sept. 2 |  Patchy rain possible | 15° /9° | 0.2 mm | 3 | |
| Sept. 3 | Light drizzle | 15° /10° | 0.6 mm | 3 | |
| Sept. 4 | Light rain | 14° /10° | 4.5 mm | 3 | |
| Sept. 5 | Light rain | 13° /9° | 7.1 mm | 3 | |
| Sept. 6 | Light rain | 13° /10° | 4.1 mm | 2 | |
| Sept. 7 | Patchy rain possible | 13° /10° | 0.8 mm | 3 | |
| Sept. 8 |  Moderate rain | 13° /9° | 20 mm | 2 | |
| Sept. 9 | Moderate rain | 13° /8° | 14.2 mm | 2 | |
| Sept. 10 |  Heavy rain | 14° /9° | 39.1 mm | 3 | |
| Sept. 11 | Moderate rain | 15° /9° | 13.5 mm | 3 | |
| Sept. 12 |  Moderate or heavy rain with thunder | 13° /10° | 10.8 mm | 3 | |
| Sept. 13 | Light rain | 13° /9° | 3.6 mm | 2 | |
| Sept. 14 | Patchy rain possible | 12° /8° | 0.6 mm | 2 | |
| Sept. 15 | Moderate rain | 12° /9° | 10.2 mm | 2 | |
| Sept. 16 | Heavy rain | 13° /9° | 25.6 mm | 2 | |
| Sept. 17 | Moderate rain | 12° /9° | 15.3 mm | 2 | |
| Sept. 18 | Heavy rain | 11° /9° | 40.4 mm | 2 | |
| Sept. 19 | Heavy rain | 12° /10° | 37 mm | 2 | |
| Sept. 20 | Heavy rain | 11° /9° | 29.8 mm | 2 | |
| Sept. 21 | Heavy rain | 11° /8° | 34.5 mm | 2 | |
| Sept. 22 | Heavy rain | 10° /7° | 33.3 mm | 2 | |
| Sept. 23 | Heavy rain | 10° /8° | 43.5 mm | 2 | |
| Sept. 24 | Moderate rain | 10° /8° | 24.1 mm | 2 | |
| Sept. 25 | Heavy rain | 10° /7° | 29.5 mm | 2 | |
| Sept. 26 | Moderate rain | 8° /7° | 18.4 mm | 1 | |
| Sept. 27 | Heavy rain | 9° /7° | 26.2 mm | 1 | |
| Sept. 28 | Heavy rain | 8° /7° | 59.6 mm | 1 | |
| Sept. 29 | Moderate rain | 9° /7° | 11.1 mm | 1 | |
| Sept. 30 | Moderate rain | 9° /7° | 20.5 mm | 2 | |
| Next | |||||
Important Notice
Our weather forecast for Sitka 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 Sitka forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sitka in September - FAQ
What are the expected maximum and minimum temperatures in Sitka during September?
During September, expect a variety of temperatures with highs around 12° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sitka during September?
Significant rainfall exceeding 580.9 mm is expected in Sitka during September, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sitka during September?
The average wind speed in Sitka during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sitka
Explore the daily rainfall trends and prepare for Sitkas September weather 💧
Typically, Sitka has 20 rainy days in September with a total of 580.9 mm of rainfall.
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