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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.

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Average dry days
29
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/13°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
55 %
Avg humidity

Sacramento County in September average weather

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Temperatures trend during September in Sacramento 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 Overcast
Overcast
30° /15° 0 mm 7
Sept. 2 Overcast
Overcast
30° /13° 0 mm 7
Sept. 3 Thundery outbreaks possible
Thundery outbreaks possible
33° /15° 0 mm 8
Sept. 4 Partly cloudy
Partly cloudy
36° /17° 0 mm 9
Sept. 5 Cloudy
Cloudy
38° /17° 0 mm 9
Sept. 6 Sunny
Sunny
38° /18° 0 mm 10
Sept. 7 Partly cloudy
Partly cloudy
35° /15° 0 mm 9
Sept. 8 Sunny
Sunny
35° /15° 0 mm 9
Sept. 9 Partly cloudy
Partly cloudy
35° /15° 0 mm 9
Sept. 10 Overcast
Overcast
34° /13° 0 mm 8
Sept. 11 Sunny
Sunny
34° /13° 0 mm 9
Sept. 12 Overcast
Overcast
32° /14° 0 mm 8
Sept. 13 Mist
Mist
34° /14° 0 mm 8
Sept. 14 Partly cloudy
Partly cloudy
34° /15° 0 mm 9
Sept. 15 Partly cloudy
Partly cloudy
30° /14° 0 mm 8
Sept. 16 Partly cloudy
Partly cloudy
27° /14° 0.2 mm 7
Sept. 17 Overcast
Overcast
26° /12° 0 mm 6
Sept. 18 Overcast
Overcast
27° /13° 0 mm 6
Sept. 19 Mist
Mist
32° /13° 0 mm 7
Sept. 20 Mist
Mist
30° /12° 0 mm 7
Sept. 21 Sunny
Sunny
32° /12° 0 mm 8
Sept. 22 Mist
Mist
33° /13° 0 mm 8
Sept. 23 Partly cloudy
Partly cloudy
32° /14° 0 mm 8
Sept. 24 Mist
Mist
33° /15° 0 mm 7
Sept. 25 Mist
Mist
29° /13° 0 mm 7
Sept. 26 Overcast
Overcast
32° /13° 0 mm 7
Sept. 27 Sunny
Sunny
34° /14° 0 mm 9
Sept. 28 Sunny
Sunny
33° /14° 0 mm 9
Sept. 29 Overcast
Overcast
33° /12° 0 mm 8
Sept. 30 Light rain shower
Light rain shower
29° /14° 0.5 mm 7
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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.

September rainfall patterns in Sacramento County

Explore the daily rainfall trends and prepare for Sacramento Countys September weather 💧

UV exposure in Sacramento County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates 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.

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