Whittier
September
Weather in Whittier for September 2025
Your guide to Whittier weather in September - trends and predictions
In general, the average temperature in Whittier at the beginning of September is 10.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.1 °F by the end of September.
Whittier experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 716.6 mm.
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Temperatures
Rain 🌧️
More
4
Dry days
26
Rainy days
0
Snow days
9°/6°
Temperatures
14 km/h
Avg max wind
93 %
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° /7° | 1.5 mm | 3 | |
| Sept. 2 |  Moderate rain at times | 11° /8° | 1.2 mm | 3 | |
| Sept. 3 | Patchy rain possible | 10° /5° | 4.1 mm | 3 | |
| Sept. 4 | Moderate or heavy rain shower | 10° /7° | 87.9 mm | 3 | |
| Sept. 5 | Moderate or heavy rain shower | 10° /7° | 124.4 mm | 3 | |
| Sept. 6 | Moderate or heavy rain shower | 9° /6° | 73.6 mm | 2 | |
| Sept. 7 |  Overcast | 13° /6° | 0.1 mm | 3 | |
| Sept. 8 | Moderate rain at times | 12° /8° | 4.3 mm | 3 | |
| Sept. 9 | Moderate or heavy rain shower | 9° /8° | 20.7 mm | 2 | |
| Sept. 10 | Patchy rain possible | 11° /8° | 4.2 mm | 3 | |
| Sept. 11 | Moderate or heavy rain shower | 9° /8° | 47 mm | 2 | |
| Sept. 12 | Moderate or heavy rain shower | 9° /8° | 51.7 mm | 2 | |
| Sept. 13 | Overcast | 12° /8° | 0 mm | 3 | |
| Sept. 14 | Moderate or heavy rain shower | 10° /6° | 23.4 mm | 3 | |
| Sept. 15 |  Heavy rain at times | 9° /6° | 12.8 mm | 2 | |
| Sept. 16 | Patchy rain possible | 9° /6° | 3.1 mm | 2 | |
| Sept. 17 | Heavy rain at times | 7° /4° | 14.6 mm | 2 | |
| Sept. 18 | Moderate or heavy rain shower | 8° /5° | 30.8 mm | 2 | |
| Sept. 19 |  Partly cloudy | 11° /5° | 3.4 mm | 4 | |
| Sept. 20 | Moderate or heavy rain shower | 8° /4° | 15.7 mm | 2 | |
| Sept. 21 |  Sunny | 9° /2° | 0 mm | 3 | |
| Sept. 22 | Moderate or heavy rain shower | 6° /2° | 28.4 mm | 2 | |
| Sept. 23 | Moderate or heavy rain shower | 8° /5° | 34.7 mm | 2 | |
| Sept. 24 | Moderate or heavy rain shower | 8° /6° | 61.5 mm | 2 | |
| Sept. 25 | Moderate rain at times | 7° /5° | 14.1 mm | 2 | |
| Sept. 26 | Moderate or heavy rain shower | 7° /3° | 11.6 mm | 2 | |
| Sept. 27 | Sunny | 9° /3° | 0 mm | 3 | |
| Sept. 28 | Moderate or heavy rain shower | 5° /4° | 18.6 mm | 2 | |
| Sept. 29 | Heavy rain at times | 6° /3° | 22.4 mm | 2 | |
| Sept. 30 |  Mist | 8° /1° | 0.8 mm | 2 | |
| Next | |||||
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.
Change Month
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 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Whittier during September?
Significant rainfall exceeding 716.6 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 2025?
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 14 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 💧
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