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United States weather

Weather in Sacramento County, California for September 2026

Your guide to Sacramento County weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Sacramento County is slightly cooler than the historical average by 1.5 °F.

  • The forecast for the upcoming days in Sacramento County predicts a temperature of 32.1 °F, which is slightly above the historical average.

  • In general, the average temperature in Sacramento County at the beginning of September is 33.1 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 30.7 °F by the end of September.

    • Rain 🌧️

  • Precipitation in Sacramento County during September is a rare event, with an average of fewer than 2 rainy days.

    • More

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Average dry days
30
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/15°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Sacramento County Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
32°
2
Sunny
31°
3
Thundery outbreaks possible
32°
4
Partly cloudy
35°
5
Sunny
34°
6
Sunny
34°
7
Sunny
34°
8
Sunny
34°
9
Overcast
34°
10
Overcast
33°
11
Sunny
33°
12
Overcast
33°
13
Mist
32°
14
Partly cloudy
33°
15
Overcast
32°
16
Sunny
30°
17
Overcast
29°
18
Overcast
29°
19
Mist
32°
20
Mist
31°
21
Sunny
28°
22
Sunny
31°
23
Sunny
34°
24
Sunny
34°
25
Sunny
31°
26
Overcast
29°
27
Sunny
28°
28
Sunny
30°
29
Sunny
31°
30
Sunny
32°

Temperatures trend during September in Sacramento County

See the weather trend as well as the moving average line

September weather in Sacramento County day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 32° /15° 0 mm 8
Sept. 2 Sunny
Sunny
 31° /14° 0 mm 8
Sept. 3 Thundery outbreaks possible
Thundery outbreaks possible
 32° /14° 0 mm 8
Sept. 4 Partly cloudy
Partly cloudy
 35° /15° 0.2 mm 9
Sept. 5 Sunny
Sunny
 34° /15° 0 mm 8
Sept. 6 Sunny
Sunny
 34° /15° 0 mm 8
Sept. 7 Sunny
Sunny
 34° /14° 0 mm 8
Sept. 8 Sunny
Sunny
 34° /13° 0 mm 8
Sept. 9 Overcast
Overcast
 34° /16° 0 mm 6
Sept. 10 Overcast
Overcast
 33° /16° 0 mm 7
Sept. 11 Sunny
Sunny
 33° /14° 0 mm 8
Sept. 12 Overcast
Overcast
 33° /14° 0 mm 7
Sept. 13 Mist
Mist
 32° /13° 0 mm 8
Sept. 14 Partly cloudy
Partly cloudy
 33° /14° 0 mm 8
Sept. 15 Overcast
Overcast
 32° /14° 0 mm 8
Sept. 16 Sunny
Sunny
 30° /15° 0.1 mm 7
Sept. 17 Overcast
Overcast
 29° /13° 0 mm 7
Sept. 18 Overcast
Overcast
 29° /14° 0 mm 6
Sept. 19 Mist
Mist
 32° /14° 0 mm 7
Sept. 20 Mist
Mist
 31° /14° 0 mm 6
Sept. 21 Sunny
Sunny
 28° /13° 0 mm 6.1
Sept. 22 Sunny
Sunny
 31° /13° 0 mm 6.2
Sept. 23 Sunny
Sunny
 34° /16° 0 mm 6.3
Sept. 24 Sunny
Sunny
 34° /18° 0 mm 6.1
Sept. 25 Sunny
Sunny
 31° /15° 0 mm 6
Sept. 26 Overcast
Overcast
 29° /16° 0 mm 7
Sept. 27 Sunny
Sunny
 28° /13° 0 mm 7
Sept. 28 Sunny
Sunny
 30° /15° 0 mm 8
Sept. 29 Sunny
Sunny
 31° /16° 0 mm 7
Sept. 30 Sunny
Sunny
 32° /16° 0 mm 8
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.
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Sacramento County in September - FAQ

What are the expected maximum and minimum temperatures in Sacramento County during September?
Expect warm days with temperatures around 32°, cooling to mild conditions of 15° 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 0 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 18 km/h, suggesting breezy to windy conditions, depending on your activities.

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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