Shasta County (Redding)
September
Weather in Shasta County, California for September 2026
Your guide to Shasta County weather in September - trends and predictions
Until now, September 2026 in Shasta County is slightly cooler than the historical average by 0.8 °F.
Expect cooler weather in the next days in Shasta County with the forecast suggesting a temperature of 32.9 °F, lower than the historical average.
In general, the average temperature in Shasta County at the beginning of September is 30.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 33.6 °F by the end of September.
Precipitation in Shasta 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°/20°
Temperatures
11 km/h
Avg max wind
39 %
Avg humidity
Shasta County Weather September
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Temperatures trend during September in Shasta County
See the weather trend as well as the moving average line
September weather in Shasta County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 32° /17° | 0.6 mm | 6 | |
| Sept. 2 | Sunny | 31° /20° | 4.5 mm | 5 | |
| Sept. 3 |  Partly cloudy | 26° /18° | 40.3 mm | 5 | |
| Sept. 4 | Partly cloudy | 31° /17° | 0 mm | 9 | |
| Sept. 5 | Sunny | 31° /17° | 0 mm | 8 | |
| Sept. 6 | Sunny | 31° /17° | 0 mm | 8 | |
| Sept. 7 |  Overcast | 30° /17° | 0 mm | 7 | |
| Sept. 8 | Partly cloudy | 30° /17° | 0 mm | 6 | |
| Sept. 9 | Overcast | 31° /17° | 0 mm | 6 | |
| Sept. 10 | Sunny | 31° /18° | 0 mm | 6 | |
| Sept. 11 |  Cloudy | 31° /16° | 0 mm | 7 | |
| Sept. 12 | Sunny | 33° /17° | 0 mm | 8 | |
| Sept. 13 | Sunny | 30° /15° | 0 mm | 8 | |
| Sept. 14 | Partly cloudy | 31° /17° | 0 mm | 7 | |
| Sept. 15 | Sunny | 33° /16° | 0 mm | 7 | |
| Sept. 16 | Sunny | 31° /17° | 0 mm | 7 | |
| Sept. 17 | Sunny | 31° /17° | 0 mm | 8 | |
| Sept. 18 | Overcast | 31° /17° | 0 mm | 7 | |
| Sept. 19 | Overcast | 31° /17° | 0 mm | 6 | |
| Sept. 20 | Overcast | 34° /17° | 0 mm | 5.1 | |
| Sept. 21 | Overcast | 35° /19° | 0 mm | 5.9 | |
| Sept. 22 | Sunny | 32° /16° | 0 mm | 5.9 | |
| Sept. 23 | Overcast | 33° /16° | 0 mm | 5.1 | |
| Sept. 24 | Sunny | 34° /16° | 0 mm | 8 | |
| Sept. 25 | Overcast | 30° /17° | 0 mm | 7 | |
| Sept. 26 | Sunny | 32° /17° | 0 mm | 8 | |
| Sept. 27 | Sunny | 36° /16° | 0 mm | 9 | |
| Sept. 28 | Sunny | 38° /16° | 0 mm | 9 | |
| Sept. 29 | Sunny | 34° /16° | 0 mm | 8 | |
| Sept. 30 | Overcast | 31° /15° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Shasta 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 Shasta County forecast closer to your planned date for the most up-to-date weather information.
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Shasta County in September - FAQ
What are the expected maximum and minimum temperatures in Shasta County during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Shasta County during September?
Expect minimal rainfall in Shasta County during September, with a total of 13.4 mm over approximately 1 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Shasta County during September?
The average wind speed in Shasta County during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Shasta County
Explore the daily rainfall trends and prepare for Shasta Countys September weather 💧
Typically, Shasta County has 1 rainy days in September with a total of 13.4 mm of rainfall.
UV exposure in Shasta County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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