Whittier (AK)
September
Weather in Whittier, Alaska for September 2026
Your guide to Whittier weather in September - trends and predictions
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Until now, September 2026 in Whittier is slightly cooler than the historical average by 0.8 °F.
The forecast for the next days in Whittier predicts temperatures to be around 10 °F, close to the historical average.
In general, the average temperature in Whittier at the beginning of September is 11.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.6 °F by the end of September.
Whittier experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 794.4 mm.
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Temperatures
Rain 🌧️
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4
Dry days
26
Rainy days
0
Snow days
9°/5°
Temperatures
12 km/h
Avg max wind
92 %
Avg humidity
Whittier Weather September
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Temperatures trend during September in Whittier
See the weather trend as well as the moving average line
September weather in Whittier day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Patchy rain possible | 12° /4° | 0.5 mm | 3 | |
| Sept. 2 |  Moderate rain at times | 13° /6° | 0.6 mm | 3 | |
| Sept. 3 | Patchy rain possible | 12° /5° | 3.4 mm | 2 | |
| Sept. 4 | Moderate or heavy rain shower | 13° /5° | 29.4 mm | 2 | |
| Sept. 5 | Moderate or heavy rain shower | 12° /7° | 42.1 mm | 2 | |
| Sept. 6 | Light rain shower | 10° /6° | 29.3 mm | 2 | |
| Sept. 7 |  Overcast | 11° /6° | 20 mm | 2 | |
| Sept. 8 | Light rain shower | 11° /6° | 12.6 mm | 2 | |
| Sept. 9 | Moderate or heavy rain shower | 11° /6° | 21.5 mm | 2 | |
| Sept. 10 | Overcast | 12° /7° | 0 mm | 2.8 | |
| Sept. 11 |  Sunny | 15° /6° | 0 mm | 2.9 | |
| Sept. 12 | Overcast | 16° /6° | 0 mm | 1.3 | |
| Sept. 13 | Overcast | 14° /6° | 0 mm | 2.4 | |
| Sept. 14 | Overcast | 10° /5° | 2.9 mm | 0.6 | |
| Sept. 15 |  Fog | 8° /6° | 16.4 mm | 2 | |
| Sept. 16 | Light rain shower | 12° /6° | 17.5 mm | 3 | |
| Sept. 17 | Patchy rain possible | 8° /5° | 1.3 mm | 2 | |
| Sept. 18 | Sunny | 10° /2° | 0 mm | 3 | |
| Sept. 19 | Sunny | 10° /2° | 0 mm | 3 | |
| Sept. 20 | Overcast | 9° /2° | 0 mm | 2 | |
| Sept. 21 | Overcast | 10° /5° | 0.2 mm | 2 | |
| Sept. 22 | Light rain shower | 7° /5° | 7.3 mm | 3 | |
| Sept. 23 | Light rain shower | 5° /4° | 14 mm | 1 | |
| Sept. 24 | Moderate or heavy rain shower | 7° /3° | 95.2 mm | 2 | |
| Sept. 25 | Moderate rain at times | 6° /3° | 23.1 mm | 2 | |
| Sept. 26 | Moderate or heavy rain shower | 7° /2° | 12.6 mm | 2 | |
| Sept. 27 | Sunny | 9° /2° | 0.6 mm | 3 | |
| Sept. 28 | Moderate or heavy rain shower | 7° /2° | 9.4 mm | 2 | |
| Sept. 29 |  Heavy rain at times | 8° /2° | 11.2 mm | 3 | |
| Sept. 30 | Mist | 9° /0° | 0.4 mm | 3 | |
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Important Notice
Our weather forecast for Whittier 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 Whittier forecast closer to your planned date for the most up-to-date weather information.
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Whittier in September - FAQ
What are the expected maximum and minimum temperatures in Whittier during September?
During September, expect a variety of temperatures with highs around 9° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in Whittier during September?
Significant rainfall exceeding 794.4 mm is expected in Whittier during September, occurring over more than 26 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Whittier in September 2026?
Whittier typically sees 0 cm of snowfall during September.
What are the typical wind conditions in Whittier during September?
The average wind speed in Whittier during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Whittier
Explore the daily rainfall trends and prepare for Whittiers September weather 💧
Typically, Whittier has 26 rainy days in September with a total of 794.4 mm of rainfall.
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