Folsom
September
Weather in Folsom for September 2025
Your guide to Folsom weather in September - trends and predictions
In general, the average temperature in Folsom at the beginning of September is 36.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 35.6 °F by the end of September.
Precipitation in Folsom during September is a rare event, with an average of fewer than 2 rainy days.
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Temperatures
Rain 🌧️
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30
Dry days
0
Rainy days
0
Snow days
33°/17°
Temperatures
11 km/h
Avg max wind
36 %
Avg humidity
Folsom in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  33° | 2 32° | 3 37° | 4 39° | 5 41° | 6 40° | 7  36° |
| 8 35° | 9 35° | 10  32° | 11 30° | 12 30° | 13 32° | 14 32° |
| 15 24° | 16  21° | 17 20° | 18 23° | 19 31° | 20 29° | 21 32° |
| 22 36° | 23  37° | 24 38° | 25 32° | 26 34° | 27 37° | 28 36° |
| 29 36° | 30 36° |
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Temperatures trend during September in Folsom
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Sunny | 33° /17° | 0 mm | 8 | |
| Sept. 2 | Sunny | 32° /14° | 0 mm | 8 | |
| Sept. 3 | Sunny | 37° /17° | 0 mm | 9 | |
| Sept. 4 | Sunny | 39° /20° | 0 mm | 9 | |
| Sept. 5 | Sunny | 41° /22° | 0 mm | 10 | |
| Sept. 6 | Sunny | 40° /23° | 0 mm | 10 | |
| Sept. 7 | Partly cloudy | 36° /20° | 0 mm | 9 | |
| Sept. 8 | Sunny | 35° /18° | 0 mm | 9 | |
| Sept. 9 | Sunny | 35° /19° | 0 mm | 9 | |
| Sept. 10 | Overcast | 32° /16° | 0 mm | 7 | |
| Sept. 11 | Sunny | 30° /13° | 0 mm | 7 | |
| Sept. 12 | Sunny | 30° /13° | 0 mm | 8 | |
| Sept. 13 | Sunny | 32° /15° | 0 mm | 8 | |
| Sept. 14 | Sunny | 32° /17° | 0 mm | 8 | |
| Sept. 15 | Partly cloudy | 24° /14° | 0 mm | 6 | |
| Sept. 16 | Patchy rain possible | 21° /12° | 0 mm | 5 | |
| Sept. 17 | Overcast | 20° /13° | 0 mm | 5 | |
| Sept. 18 | Overcast | 23° /13° | 0 mm | 5 | |
| Sept. 19 | Overcast | 31° /15° | 0 mm | 7 | |
| Sept. 20 | Partly cloudy | 29° /12° | 0 mm | 7 | |
| Sept. 21 | Partly cloudy | 32° /14° | 0 mm | 8 | |
| Sept. 22 | Sunny | 36° /18° | 0 mm | 9 | |
| Sept. 23 | Cloudy | 37° /19° | 0 mm | 8 | |
| Sept. 24 | Overcast | 38° /22° | 0 mm | 8 | |
| Sept. 25 | Sunny | 32° /18° | 0 mm | 8 | |
| Sept. 26 | Sunny | 34° /15° | 0 mm | 8 | |
| Sept. 27 | Sunny | 37° /18° | 0 mm | 9 | |
| Sept. 28 | Sunny | 36° /20° | 0 mm | 9 | |
| Sept. 29 | Sunny | 36° /17° | 0 mm | 9 | |
| Sept. 30 | Sunny | 36° /16° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Folsom 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 Folsom forecast closer to your planned date for the most up-to-date weather information.
Folsom in September - FAQ
What are the expected maximum and minimum temperatures in Folsom during September?
Expect warm days with temperatures around 33°, cooling to mild conditions of 17° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Folsom during September?
Rainfall in Folsom during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Folsom during September?
The average wind speed in Folsom during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
UV exposure in Folsom during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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