Sitka City and Borough (Sitka)
September
Weather in Sitka City and Borough, Alaska for September 2026
Your guide to Sitka City and Borough weather in September - trends and predictions
So far, September 2026 in Sitka City and Borough is slightly warmer than the historical average by 0.9 °F.
Expect cooler weather in the next days in Sitka City and Borough with the forecast suggesting a temperature of 9.2 °F, lower than the historical average.
In general, the average temperature in Sitka City and Borough at the beginning of September is 14.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.9 °F by the end of September.
Sitka City and Borough experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 698.1 mm.
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Temperatures
Rain 🌧️
More
5
Dry days
25
Rainy days
0
Snow days
11°/9°
Temperatures
13 km/h
Avg max wind
90 %
Avg humidity
Sitka City and Borough Weather September
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Temperatures trend during September in Sitka City and Borough
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September weather in Sitka City and Borough day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 14° /10° | 3.1 mm | 2 | |
| Sept. 2 | Patchy rain possible | 15° /9° | 0.2 mm | 3 | |
| Sept. 3 |  Light drizzle | 16° /9° | 0.6 mm | 3 | |
| Sept. 4 | Light drizzle | 15° /9° | 4.5 mm | 3 | |
| Sept. 5 | Light drizzle | 14° /9° | 7.1 mm | 3 | |
| Sept. 6 | Light rain | 13° /10° | 4.1 mm | 2 | |
| Sept. 7 | Patchy rain possible | 13° /9° | 0.8 mm | 3 | |
| Sept. 8 | Patchy rain possible | 13° /9° | 20 mm | 2 | |
| Sept. 9 | Patchy rain possible | 13° /8° | 14.2 mm | 2 | |
| Sept. 10 | Light rain shower | 15° /9° | 39.1 mm | 3 | |
| Sept. 11 | Patchy rain possible | 15° /8° | 13.5 mm | 3 | |
| Sept. 12 |  Moderate or heavy rain with thunder | 13° /10° | 10.8 mm | 3 | |
| Sept. 13 | Light rain shower | 13° /9° | 3.6 mm | 2 | |
| Sept. 14 | Patchy rain possible | 13° /8° | 0.6 mm | 2 | |
| Sept. 15 | Light rain shower | 12° /8° | 10.2 mm | 2 | |
| Sept. 16 | Light rain shower | 13° /9° | 25.6 mm | 2 | |
| Sept. 17 |  Fog | 12° /8° | 15.3 mm | 2 | |
| Sept. 18 |  Moderate or heavy rain shower | 12° /8° | 40.4 mm | 2 | |
| Sept. 19 | Light rain shower | 12° /9° | 37 mm | 2 | |
| Sept. 20 | Moderate or heavy rain shower | 11° /9° | 29.8 mm | 2 | |
| Sept. 21 | Moderate or heavy rain shower | 12° /8° | 34.5 mm | 2 | |
| Sept. 22 | Fog | 10° /7° | 33.3 mm | 2 | |
| Sept. 23 | Moderate or heavy rain shower | 10° /8° | 43.5 mm | 2 | |
| Sept. 24 |  Overcast | 10° /7° | 24.1 mm | 2 | |
| Sept. 25 |  Sunny | 12° /5° | 0.5 mm | 2 | |
| Sept. 26 | Patchy rain possible | 11° /6° | 0.3 mm | 0.9 | |
| Sept. 27 | Patchy rain possible | 8° /7° | 4.5 mm | 0.3 | |
| Sept. 28 | Light rain shower | 10° /7° | 5.9 mm | 0.6 | |
| Sept. 29 | Light rain shower | 8° /6° | 15.5 mm | 2 | |
| Sept. 30 | Patchy rain possible | 10° /6° | 5.2 mm | 3 | |
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Important Notice
Our weather forecast for Sitka City and Borough 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 City and Borough forecast closer to your planned date for the most up-to-date weather information.
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Sitka City and Borough in September - FAQ
What are the expected maximum and minimum temperatures in Sitka City and Borough during September?
During September, expect a variety of temperatures with highs around 11° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sitka City and Borough during September?
Significant rainfall exceeding 698.1 mm is expected in Sitka City and Borough during September, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sitka City and Borough during September?
The average wind speed in Sitka City and Borough during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sitka City and Borough
Explore the daily rainfall trends and prepare for Sitka City and Boroughs September weather 💧
Typically, Sitka City and Borough has 25 rainy days in September with a total of 698.1 mm of rainfall.
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Where is Sitka City and Borough?Get accurate weather forecasts for Sitka City and Borough, located at latitude 57.053 and longitude -135.331. Stay updated with localized weather information tailored for Sitka City and Borough.
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