Juneau City and Borough (Juneau)
September
Weather in Juneau City and Borough, Alaska for September 2027
Your guide to Juneau City and Borough weather in September - trends and predictions
In general, the average temperature in Juneau City and Borough at the beginning of September is 12.2 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7 °C by the end of September.
Juneau City and Borough in September brings notable rainfall, with an average of 20 rainy days and a total precipitation of 391.9 mm.
Is September a good time to visit Juneau City and Borough? check out the best time to travel to Juneau City and Borough page.
✨ Is September a good time to visit Juneau City and Borough? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
10
Dry days
20
Rainy days
0
Snow days
10°/5°
Temperatures
9 km/h
Avg max wind
89 %
Avg humidity
Juneau City and Borough Weather September
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Temperatures trend during September in Juneau City and Borough
See the weather trend as well as the moving average line
September weather in Juneau City and Borough day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain | 13° /6° | 8.2 mm | 3 | |
| Sept. 2 | Light rain | 13° /6° | 2.9 mm | 3 | |
| Sept. 3 |  Light rain shower | 13° /7° | 2.4 mm | 3 | |
| Sept. 4 | Light rain | 12° /7° | 7.1 mm | 3 | |
| Sept. 5 | Light rain | 13° /7° | 6 mm | 3 | |
| Sept. 6 | Light rain | 10° /7° | 6.5 mm | 2 | |
| Sept. 7 |  Moderate rain | 12° /7° | 11.1 mm | 2 | |
| Sept. 8 | Moderate rain | 10° /5° | 18.8 mm | 2 | |
| Sept. 9 | Light rain | 11° /6° | 6.8 mm | 2 | |
| Sept. 10 | Light rain | 13° /7° | 8.8 mm | 3 | |
| Sept. 11 | Light rain | 11° /6° | 9.6 mm | 3 | |
| Sept. 12 | Moderate rain | 11° /6° | 11.3 mm | 2 | |
| Sept. 13 | Moderate rain | 11° /6° | 10.4 mm | 2 | |
| Sept. 14 | Moderate rain | 11° /5° | 21.8 mm | 2 | |
| Sept. 15 | Moderate rain | 8° /5° | 15.2 mm | 2 | |
| Sept. 16 | Moderate rain | 9° /6° | 16.9 mm | 2 | |
| Sept. 17 | Moderate rain | 9° /5° | 15.3 mm | 2 | |
| Sept. 18 | Moderate rain | 8° /5° | 18 mm | 2 | |
| Sept. 19 |  Heavy rain | 9° /6° | 29.6 mm | 2 | |
| Sept. 20 | Heavy rain | 8° /5° | 26.6 mm | 2 | |
| Sept. 21 | Heavy rain | 8° /5° | 26.8 mm | 2 | |
| Sept. 22 | Moderate rain | 8° /5° | 23.8 mm | 2 | |
| Sept. 23 | Moderate rain | 7° /4° | 19.6 mm | 2 | |
| Sept. 24 | Light rain | 8° /4° | 9.8 mm | 2 | |
| Sept. 25 | Light rain | 8° /4° | 7.4 mm | 2 | |
| Sept. 26 | Moderate rain | 7° /3° | 13.2 mm | 2 | |
| Sept. 27 | Moderate rain | 7° /3° | 21.6 mm | 2 | |
| Sept. 28 | Light rain | 6° /3° | 6 mm | 1 | |
| Sept. 29 | Light rain | 7° /3° | 4.3 mm | 2 | |
| Sept. 30 | Light rain | 8° /2° | 6.4 mm | 2 | |
| Next | |||||
Important Notice
Our weather forecast for Juneau 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 Juneau City and Borough forecast closer to your planned date for the most up-to-date weather information.
Change Month
Juneau City and Borough in September - FAQ
What are the expected maximum and minimum temperatures in Juneau City and Borough during September?
During September, expect a variety of temperatures with highs around 10° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Juneau City and Borough during September?
Significant rainfall exceeding 391.9 mm is expected in Juneau City and Borough during September, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Juneau City and Borough during September?
The average wind speed in Juneau City and Borough during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Juneau City and Borough
Explore the daily rainfall trends and prepare for Juneau City and Boroughs September weather 💧
Typically, Juneau City and Borough has 20 rainy days in September with a total of 391.9 mm of rainfall.
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