Ventura County
September
Weather in Ventura County for September 2025
Your guide to Ventura County weather in September - trends and predictions
In general, the average temperature in Ventura County at the beginning of September is 22.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 20.3 °F by the end of September.
Precipitation in Ventura County during September is a rare event, with an average of fewer than 2 rainy days.
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29
Dry days
1
Rainy days
0
Snow days
21°/16°
Temperatures
16 km/h
Avg max wind
78 %
Avg humidity
Ventura County in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  23° | 3 22° | 4 22° | 5 24° | 6  23° | 7 23° |
| 8 26° | 9 26° | 10 23° | 11 22° | 12 21° | 13  21° | 14 20° |
| 15 19° | 16 20° | 17 20° | 18 19° | 19 19° | 20 18° | 21  18° |
| 22 19° | 23 21° | 24 20° | 25 20° | 26 20° | 27  22° | 28 20° |
| 29 20° | 30 20° |
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Temperatures trend during September in Ventura County
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September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Partly cloudy | 23° /18° | 0 mm | 6 | |
| Sept. 2 | Cloudy | 23° /18° | 0 mm | 6 | |
| Sept. 3 | Cloudy | 22° /18° | 0 mm | 6 | |
| Sept. 4 | Partly cloudy | 22° /18° | 0 mm | 6 | |
| Sept. 5 | Cloudy | 24° /19° | 0 mm | 6 | |
| Sept. 6 | Overcast | 23° /20° | 0 mm | 6 | |
| Sept. 7 | Partly cloudy | 23° /19° | 0 mm | 7 | |
| Sept. 8 | Partly cloudy | 26° /20° | 0 mm | 7 | |
| Sept. 9 | Partly cloudy | 26° /19° | 0 mm | 7 | |
| Sept. 10 | Overcast | 23° /18° | 0 mm | 6 | |
| Sept. 11 | Cloudy | 22° /18° | 0 mm | 5 | |
| Sept. 12 | Cloudy | 21° /17° | 0 mm | 5 | |
| Sept. 13 | Mist | 21° /16° | 0 mm | 6 | |
| Sept. 14 | Mist | 20° /15° | 0 mm | 5 | |
| Sept. 15 | Mist | 19° /15° | 0 mm | 5 | |
| Sept. 16 | Mist | 20° /16° | 0 mm | 5 | |
| Sept. 17 | Overcast | 20° /15° | 0 mm | 5 | |
| Sept. 18 | Mist | 19° /15° | 0 mm | 5 | |
| Sept. 19 | Mist | 19° /15° | 0 mm | 5 | |
| Sept. 20 | Mist | 18° /15° | 0 mm | 4 | |
| Sept. 21 | Patchy rain possible | 18° /14° | 0.1 mm | 4 | |
| Sept. 22 | Overcast | 19° /14° | 0 mm | 5 | |
| Sept. 23 | Mist | 21° /16° | 0 mm | 5 | |
| Sept. 24 | Mist | 20° /14° | 0 mm | 6 | |
| Sept. 25 | Mist | 20° /14° | 0 mm | 5 | |
| Sept. 26 | Cloudy | 20° /14° | 0 mm | 5 | |
| Sept. 27 | Sunny | 22° /15° | 0 mm | 5 | |
| Sept. 28 | Partly cloudy | 20° /15° | 0 mm | 5 | |
| Sept. 29 | Mist | 20° /15° | 0 mm | 6 | |
| Sept. 30 | Light rain shower | 20° /16° | 0.7 mm | 5 | |
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Important Notice
Our weather forecast for Ventura 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 Ventura County forecast closer to your planned date for the most up-to-date weather information.
Ventura County in September - FAQ
What are the expected maximum and minimum temperatures in Ventura County during September?
During September, expect a variety of temperatures with highs around 21° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ventura County during September?
Rainfall in Ventura 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 Ventura County during September?
The average wind speed in Ventura County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
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Where is Ventura County?Get accurate weather forecasts for Ventura County, located at latitude 34.198 and longitude -119.177. Stay updated with localized weather information tailored for Ventura County.
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