Fresno (CA)
September
Weather in Fresno, California for September 2025
Your guide to Fresno weather in September - trends and predictions
Until now, September 2025 in Fresno is slightly cooler than the historical average by -1.1 °F.
The forecast for the next days in Fresno predicts a temperature of 32.1 °F, which is cooler than the historical average.
In general, the average temperature in Fresno at the beginning of September is 37.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 29.7 °F by the end of September.
Precipitation in Fresno 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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29
Dry days
1
Rainy days
0
Snow days
34°/18°
Temperatures
16 km/h
Avg max wind
33 %
Avg humidity
Fresno Weather September
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Temperatures trend during September in Fresno
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September weather in Fresno day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 39° /21° | 0 mm | 9 | |
| Sept. 2 | Sunny | 37° /20° | 0 mm | 9 | |
| Sept. 3 | Sunny | 36° /20° | 0 mm | 8 | |
| Sept. 4 | Sunny | 37° /20° | 0 mm | 9 | |
| Sept. 5 | Sunny | 38° /20° | 0 mm | 9 | |
| Sept. 6 | Sunny | 38° /21° | 0 mm | 9 | |
| Sept. 7 | Sunny | 37° /20° | 0 mm | 9 | |
| Sept. 8 | Sunny | 37° /20° | 0 mm | 9 | |
| Sept. 9 |  Patchy rain possible | 36° /20° | 0.5 mm | 8 | |
| Sept. 10 | Sunny | 34° /19° | 0 mm | 8 | |
| Sept. 11 | Sunny | 34° /17° | 0 mm | 8 | |
| Sept. 12 | Sunny | 33° /15° | 0 mm | 8 | |
| Sept. 13 | Sunny | 35° /17° | 0 mm | 8 | |
| Sept. 14 | Sunny | 36° /18° | 0 mm | 9 | |
| Sept. 15 | Sunny | 36° /19° | 0 mm | 9 | |
| Sept. 16 | Sunny | 42° /19° | 0 mm | 1.7 | |
| Sept. 17 | Sunny | 41° /20° | 0 mm | 1.6 | |
| Sept. 18 |  Partly cloudy | 39° /21° | 0 mm | 1 | |
| Sept. 19 |  Heavy rain | 21° /18° | 24.4 mm | 0.4 | |
| Sept. 20 | Patchy rain possible | 27° /20° | 0.2 mm | 0 | |
| Sept. 21 | Sunny | 30° /20° | 0 mm | 6 | |
| Sept. 22 | Sunny | 34° /22° | 0 mm | 7 | |
| Sept. 23 | Sunny | 36° /25° | 0 mm | 8 | |
| Sept. 24 | Sunny | 38° /26° | 0 mm | 8 | |
| Sept. 25 | Sunny | 34° /23° | 0 mm | 7 | |
| Sept. 26 | Sunny | 25° /17° | 0 mm | 6 | |
| Sept. 27 | Sunny | 25° /15° | 0 mm | 5 | |
| Sept. 28 | Sunny | 27° /16° | 0 mm | 6 | |
| Sept. 29 | Sunny | 30° /19° | 0 mm | 6 | |
| Sept. 30 |  Patchy light rain | 29° /16° | 1.1 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Fresno 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 Fresno forecast closer to your planned date for the most up-to-date weather information.
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Fresno in September - FAQ
What are the expected maximum and minimum temperatures in Fresno during September?
Expect warm days with temperatures around 34°, cooling to mild conditions of 18° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Fresno during September?
Rainfall in Fresno during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 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 Fresno during September?
The average wind speed in Fresno during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Fresno
Explore the daily rainfall trends and prepare for Fresnos September weather 💧
UV exposure in Fresno during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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