Fresno County (Fresno)
September
Weather in Fresno County for September 2025
Your guide to Fresno County weather in September - trends and predictions
In general, the average temperature in Fresno County at the beginning of September is 36.4 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 33.7 °F by the end of September.
With an average of 2 rainy days, Fresno County experiences minimal rainfall in September.
- New! Chat with our AI weatherman - it’s amazing and free.
28
Dry days
2
Rainy days
0
Snow days
33°/16°
Temperatures
16 km/h
Avg max wind
39 %
Avg humidity
Fresno County in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  37° | 2  35° | 3  33° | 4 35° | 5 38° | 6 39° | 7 38° |
| 8 39° | 9  39° | 10 38° | 11 36° | 12 33° | 13 35° | 14 36° |
| 15 35° | 16 30° | 17 29° | 18 28° | 19 30° | 20 32° | 21  32° |
| 22 33° | 23 35° | 24 36° | 25 34° | 26 33° | 27 35° | 28 34° |
| 29 35° | 30  29° |
You can click on date
Access Fresno County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Fresno County
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Partly cloudy | 37° /21° | 0 mm | 9 | |
| Sept. 2 | Sunny | 35° /18° | 0 mm | 9 | |
| Sept. 3 | Overcast | 33° /19° | 0 mm | 8 | |
| Sept. 4 | Sunny | 35° /19° | 0 mm | 9 | |
| Sept. 5 | Sunny | 38° /20° | 0 mm | 9 | |
| Sept. 6 | Sunny | 39° /22° | 0 mm | 10 | |
| Sept. 7 | Sunny | 38° /21° | 0 mm | 10 | |
| Sept. 8 | Sunny | 39° /22° | 0 mm | 10 | |
| Sept. 9 | Patchy rain possible | 39° /22° | 0.8 mm | 9 | |
| Sept. 10 | Sunny | 38° /20° | 0 mm | 9 | |
| Sept. 11 | Overcast | 36° /19° | 0 mm | 8 | |
| Sept. 12 | Sunny | 33° /15° | 0 mm | 9 | |
| Sept. 13 | Sunny | 35° /17° | 0 mm | 9 | |
| Sept. 14 | Sunny | 36° /19° | 0 mm | 9 | |
| Sept. 15 | Sunny | 35° /20° | 0 mm | 9 | |
| Sept. 16 | Sunny | 30° /17° | 0 mm | 8 | |
| Sept. 17 | Partly cloudy | 29° /13° | 0 mm | 8 | |
| Sept. 18 | Sunny | 28° /13° | 0 mm | 7 | |
| Sept. 19 | Sunny | 30° /14° | 0 mm | 7 | |
| Sept. 20 | Sunny | 32° /15° | 0 mm | 8 | |
| Sept. 21 | Cloudy | 32° /16° | 0 mm | 8 | |
| Sept. 22 | Overcast | 33° /15° | 0 mm | 8 | |
| Sept. 23 | Sunny | 35° /17° | 0 mm | 9 | |
| Sept. 24 | Partly cloudy | 36° /17° | 0 mm | 9 | |
| Sept. 25 | Sunny | 34° /17° | 0 mm | 9 | |
| Sept. 26 | Partly cloudy | 33° /14° | 0 mm | 9 | |
| Sept. 27 | Sunny | 35° /15° | 0 mm | 9 | |
| Sept. 28 | Sunny | 34° /16° | 0 mm | 9 | |
| Sept. 29 | Sunny | 35° /16° | 0 mm | 9 | |
| Sept. 30 | Patchy light rain | 29° /16° | 1.1 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Fresno County 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 County forecast closer to your planned date for the most up-to-date weather information.
Fresno County in September - FAQ
What are the expected maximum and minimum temperatures in Fresno County during September?
Expect warm days with temperatures around 33°, cooling to mild conditions of 16° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Fresno County during September?
Rainfall in Fresno County during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 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 County during September?
The average wind speed in Fresno County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Fresno County
Explore the daily rainfall trends and prepare for Fresno Countys September weather 💧
UV exposure in Fresno County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Fresno County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Fresno County?Get accurate weather forecasts for Fresno County, located at latitude 36.748 and longitude -119.772. Stay updated with localized weather information tailored for Fresno County.
Found a mistake?
We appreciate your attention to details. Tell us here.