Sacramento County
September
Weather in Sacramento County for September 2025
Your guide to Sacramento County weather in September - trends and predictions
In general, the average temperature in Sacramento County at the beginning of September is 34.3 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 31.9 °F by the end of September.
Precipitation in Sacramento County during September is a rare event, with an average of fewer than 2 rainy days.
- New! Chat with our AI weatherman - it’s amazing and free.
29
Dry days
1
Rainy days
0
Snow days
31°/13°
Temperatures
19 km/h
Avg max wind
55 %
Avg humidity
Sacramento County in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  30° | 2 30° | 3  33° | 4  36° | 5  38° | 6  38° | 7 35° |
| 8 35° | 9 35° | 10 34° | 11 34° | 12 32° | 13  34° | 14 34° |
| 15 30° | 16 27° | 17 26° | 18 27° | 19 32° | 20 30° | 21 32° |
| 22 33° | 23 32° | 24 33° | 25 29° | 26 32° | 27 34° | 28 33° |
| 29 33° | 30  29° |
You can click on date
Access Sacramento County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Sacramento 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 | Overcast | 30° /15° | 0 mm | 7 | |
| Sept. 2 | Overcast | 30° /13° | 0 mm | 7 | |
| Sept. 3 | Thundery outbreaks possible | 33° /15° | 0 mm | 8 | |
| Sept. 4 | Partly cloudy | 36° /17° | 0 mm | 9 | |
| Sept. 5 | Cloudy | 38° /17° | 0 mm | 9 | |
| Sept. 6 | Sunny | 38° /18° | 0 mm | 10 | |
| Sept. 7 | Partly cloudy | 35° /15° | 0 mm | 9 | |
| Sept. 8 | Sunny | 35° /15° | 0 mm | 9 | |
| Sept. 9 | Partly cloudy | 35° /15° | 0 mm | 9 | |
| Sept. 10 | Overcast | 34° /13° | 0 mm | 8 | |
| Sept. 11 | Sunny | 34° /13° | 0 mm | 9 | |
| Sept. 12 | Overcast | 32° /14° | 0 mm | 8 | |
| Sept. 13 | Mist | 34° /14° | 0 mm | 8 | |
| Sept. 14 | Partly cloudy | 34° /15° | 0 mm | 9 | |
| Sept. 15 | Partly cloudy | 30° /14° | 0 mm | 8 | |
| Sept. 16 | Partly cloudy | 27° /14° | 0.2 mm | 7 | |
| Sept. 17 | Overcast | 26° /12° | 0 mm | 6 | |
| Sept. 18 | Overcast | 27° /13° | 0 mm | 6 | |
| Sept. 19 | Mist | 32° /13° | 0 mm | 7 | |
| Sept. 20 | Mist | 30° /12° | 0 mm | 7 | |
| Sept. 21 | Sunny | 32° /12° | 0 mm | 8 | |
| Sept. 22 | Mist | 33° /13° | 0 mm | 8 | |
| Sept. 23 | Partly cloudy | 32° /14° | 0 mm | 8 | |
| Sept. 24 | Mist | 33° /15° | 0 mm | 7 | |
| Sept. 25 | Mist | 29° /13° | 0 mm | 7 | |
| Sept. 26 | Overcast | 32° /13° | 0 mm | 7 | |
| Sept. 27 | Sunny | 34° /14° | 0 mm | 9 | |
| Sept. 28 | Sunny | 33° /14° | 0 mm | 9 | |
| Sept. 29 | Overcast | 33° /12° | 0 mm | 8 | |
| Sept. 30 | Light rain shower | 29° /14° | 0.5 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Sacramento 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 Sacramento County forecast closer to your planned date for the most up-to-date weather information.
Sacramento County in September - FAQ
What are the expected maximum and minimum temperatures in Sacramento County during September?
Expect warm days with temperatures around 31°, cooling to mild conditions of 13° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Sacramento County during September?
Rainfall in Sacramento 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 Sacramento County during September?
The average wind speed in Sacramento County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Top locations in Sacramento County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Sacramento County?Get accurate weather forecasts for Sacramento County, located at latitude 38.582 and longitude -121.494. Stay updated with localized weather information tailored for Sacramento County.
Found a mistake?
We appreciate your attention to details. Tell us here.