Solano County (Fairfield)
September
Weather in Solano County for September 2025
Your guide to Solano County weather in September - trends and predictions
In general, the average temperature in Solano County at the beginning of September is 33.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 31.4 °F by the end of September.
Precipitation in Solano County 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
30°/13°
Temperatures
17 km/h
Avg max wind
57 %
Avg humidity
Solano County Weather September
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  27° | 2 28° | 3  38° | 4 37° | 5 37° | 6 35° | |
| 7 30° | 8 33° | 9 30° | 10 25° | 11 30° | 12 30° | 13 31° |
| 14 27° | 15  22° | 16  22° | 17 19° | 18 23° | 19  27° | 20 25° |
| 21 28° | 22 32° | 23 37° | 24 36° | 25 24° | 26 30° | 27 35° |
| 28 28° | 29 30° | 30 37° |
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Temperatures trend during September in Solano County
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 | 27° /13° | 0 mm | 7 | |
| Sept. 2 | Sunny | 28° /12° | 0 mm | 7 | |
| Sept. 3 | Partly cloudy | 38° /13° | 0 mm | 9 | |
| Sept. 4 | Sunny | 37° /16° | 0 mm | 9 | |
| Sept. 5 | Sunny | 37° /16° | 0 mm | 9 | |
| Sept. 6 | Sunny | 35° /16° | 0 mm | 9 | |
| Sept. 7 | Sunny | 30° /14° | 0 mm | 8 | |
| Sept. 8 | Sunny | 33° /12° | 0 mm | 8 | |
| Sept. 9 | Sunny | 30° /14° | 0 mm | 8 | |
| Sept. 10 | Sunny | 25° /12° | 0 mm | 7 | |
| Sept. 11 | Sunny | 30° /12° | 0 mm | 8 | |
| Sept. 12 | Sunny | 30° /12° | 0 mm | 8 | |
| Sept. 13 | Sunny | 31° /13° | 0 mm | 8 | |
| Sept. 14 | Sunny | 27° /13° | 0 mm | 7 | |
| Sept. 15 | Overcast | 22° /13° | 0 mm | 5 | |
| Sept. 16 | Patchy rain possible | 22° /12° | 1.1 mm | 5 | |
| Sept. 17 | Overcast | 19° /11° | 0 mm | 4 | |
| Sept. 18 | Overcast | 23° /12° | 0 mm | 5 | |
| Sept. 19 | Cloudy | 27° /11° | 0 mm | 6 | |
| Sept. 20 | Overcast | 25° /11° | 0 mm | 6 | |
| Sept. 21 | Overcast | 28° /11° | 0 mm | 6 | |
| Sept. 22 | Sunny | 32° /12° | 0 mm | 8 | |
| Sept. 23 | Overcast | 37° /14° | 0 mm | 8 | |
| Sept. 24 | Partly cloudy | 36° /16° | 0 mm | 9 | |
| Sept. 25 | Overcast | 24° /12° | 0 mm | 5 | |
| Sept. 26 | Overcast | 30° /11° | 0 mm | 7 | |
| Sept. 27 | Sunny | 35° /13° | 0 mm | 9 | |
| Sept. 28 | Partly cloudy | 28° /12° | 0 mm | 7 | |
| Sept. 29 | Overcast | 30° /12° | 0 mm | 7 | |
| Sept. 30 | Sunny | 37° /13° | 0 mm | 9 | |
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Important Notice
Our weather forecast for Solano 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 Solano County forecast closer to your planned date for the most up-to-date weather information.
Solano County in September - FAQ
What are the expected maximum and minimum temperatures in Solano County during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 13° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Solano County during September?
Rainfall in Solano County 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 Solano County during September?
The average wind speed in Solano County during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Solano County
Explore the daily rainfall trends and prepare for Solano Countys September weather 💧
UV exposure in Solano County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Solano County?Get accurate weather forecasts for Solano County, located at latitude 38.249 and longitude -122.04. Stay updated with localized weather information tailored for Solano County.
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