Santa Cruz County (Santa Cruz)
September
Weather in Santa Cruz County, California for September 2026
Your guide to Santa Cruz County weather in September - trends and predictions
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So far, September 2026 in Santa Cruz County is slightly warmer than the historical average by 1.7 °F.
The forecast for the upcoming days in Santa Cruz County predicts a temperature of 25.8 °F, which is slightly above the historical average.
In general, the average temperature in Santa Cruz County at the beginning of September is 23.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.4 °F by the end of September.
With an average of 2 rainy days, Santa Cruz County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
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28
Dry days
2
Rainy days
0
Snow days
21°/14°
Temperatures
12 km/h
Avg max wind
84 %
Avg humidity
Santa Cruz County Weather September
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Temperatures trend during September in Santa Cruz County
See the weather trend as well as the moving average line
September weather in Santa Cruz County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 24° /13° | 2.2 mm | 5 | |
| Sept. 2 |  Mist | 21° /13° | 0 mm | 7 | |
| Sept. 3 | Mist | 23° /12° | 0 mm | 7 | |
| Sept. 4 | Mist | 23° /13° | 0.1 mm | 7 | |
| Sept. 5 | Mist | 25° /13° | 0 mm | 7 | |
| Sept. 6 |  Overcast | 25° /12° | 0 mm | 7 | |
| Sept. 7 | Overcast | 25° /13° | 0 mm | 7 | |
| Sept. 8 | Overcast | 25° /12° | 0 mm | 5 | |
| Sept. 9 |  Light rain | 26° /16° | 2.3 mm | 3 | |
| Sept. 10 | Fog | 26° /17° | 0 mm | 7 | |
| Sept. 11 | Overcast | 21° /15° | 0 mm | 6 | |
| Sept. 12 | Mist | 24° /13° | 0 mm | 7 | |
| Sept. 13 | Mist | 22° /13° | 0 mm | 7 | |
| Sept. 14 | Overcast | 25° /13° | 0 mm | 7 | |
| Sept. 15 | Mist | 23° /13° | 0 mm | 7 | |
| Sept. 16 | Partly cloudy | 22° /13° | 0.1 mm | 7 | |
| Sept. 17 |  Cloudy | 24° /14° | 0 mm | 7 | |
| Sept. 18 |  Moderate or heavy rain shower | 23° /13° | 14.5 mm | 6 | |
| Sept. 19 | Mist | 21° /13° | 0 mm | 6 | |
| Sept. 20 | Cloudy | 21° /13° | 0 mm | 4 | |
| Sept. 21 |  Sunny | 20° /12° | 0 mm | 6.8 | |
| Sept. 22 | Sunny | 21° /12° | 0 mm | 6.8 | |
| Sept. 23 | Sunny | 25° /13° | 0.1 mm | 6.9 | |
| Sept. 24 | Sunny | 26° /15° | 0 mm | 6.6 | |
| Sept. 25 | Sunny | 26° /14° | 0 mm | 6.5 | |
| Sept. 26 | Sunny | 23° /13° | 0 mm | 5 | |
| Sept. 27 | Sunny | 24° /12° | 0 mm | 6 | |
| Sept. 28 | Sunny | 25° /13° | 0 mm | 7 | |
| Sept. 29 | Sunny | 27° /14° | 0 mm | 7 | |
| Sept. 30 | Sunny | 27° /14° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Santa Cruz 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 Santa Cruz County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Santa Cruz County in September - FAQ
What are the expected maximum and minimum temperatures in Santa Cruz County during September?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Santa Cruz County during September?
In September, Santa Cruz County can expect light to moderate rainfall, totaling 33.7 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Santa Cruz County during September?
The average wind speed in Santa Cruz County during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Santa Cruz County
Explore the daily rainfall trends and prepare for Santa Cruz Countys September weather 💧
Typically, Santa Cruz County has 2 rainy days in September with a total of 33.7 mm of rainfall.
UV exposure in Santa Cruz County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Santa Cruz County?Get accurate weather forecasts for Santa Cruz County, located at latitude 36.974 and longitude -122.031. Stay updated with localized weather information tailored for Santa Cruz County.
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