Santa Rosa
August
Weather in Santa Rosa for August 2025
Your guide to Santa Rosa weather in August - trends and predictions
In general, the average temperature in Santa Rosa at the beginning of August is 29.7 °F. As the month progressed, temperatures tended to remain steady, reaching an average of 29.7 °F by the end of August.
Precipitation in Santa Rosa during August is a rare event, with an average of fewer than 2 rainy days.
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30
Dry days
1
Rainy days
0
Snow days
29°/13°
Temperatures
15 km/h
Avg max wind
65 %
Avg humidity
Santa Rosa in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 29° | 3 28° | ||||
| 4  29° | 5 30° | 6  33° | 7 31° | 8 26° | 9 27° | 10 28° |
| 11 25° | 12 27° | 13 29° | 14 31° | 15  30° | 16 30° | 17 26° |
| 18 25° | 19 28° | 20 29° | 21  26° | 22 26° | 23 27° | 24 27° |
| 25  27° | 26 30° | 27 31° | 28 31° | 29 30° | 30 30° | 31 29° |
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Temperatures trend during August in Santa Rosa
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Overcast | 28° /11° | 0 mm | 7 | |
| Aug. 2 | Overcast | 29° /11° | 0 mm | 7 | |
| Aug. 3 | Overcast | 28° /11° | 0 mm | 7 | |
| Aug. 4 | Partly cloudy | 29° /11° | 0 mm | 7 | |
| Aug. 5 | Partly cloudy | 30° /11° | 0 mm | 8 | |
| Aug. 6 | Sunny | 33° /14° | 0 mm | 8 | |
| Aug. 7 | Partly cloudy | 31° /14° | 0 mm | 8 | |
| Aug. 8 | Overcast | 26° /11° | 0 mm | 6 | |
| Aug. 9 | Overcast | 27° /11° | 0 mm | 7 | |
| Aug. 10 | Overcast | 28° /11° | 0 mm | 7 | |
| Aug. 11 | Overcast | 25° /11° | 0 mm | 7 | |
| Aug. 12 | Overcast | 27° /10° | 0 mm | 7 | |
| Aug. 13 | Overcast | 29° /10° | 0 mm | 7 | |
| Aug. 14 | Overcast | 31° /12° | 0 mm | 7 | |
| Aug. 15 | Cloudy | 30° /12° | 0 mm | 7 | |
| Aug. 16 | Cloudy | 30° /12° | 0 mm | 7 | |
| Aug. 17 | Cloudy | 26° /12° | 0 mm | 6 | |
| Aug. 18 | Overcast | 25° /12° | 0 mm | 6 | |
| Aug. 19 | Cloudy | 28° /10° | 0 mm | 7 | |
| Aug. 20 | Overcast | 29° /12° | 0 mm | 7 | |
| Aug. 21 | Patchy rain possible | 26° /12° | 0.4 mm | 6 | |
| Aug. 22 | Cloudy | 26° /12° | 0 mm | 6 | |
| Aug. 23 | Cloudy | 27° /11° | 0 mm | 6 | |
| Aug. 24 | Partly cloudy | 27° /12° | 0 mm | 7 | |
| Aug. 25 | Mist | 27° /10° | 0 mm | 7 | |
| Aug. 26 | Mist | 30° /12° | 0 mm | 8 | |
| Aug. 27 | Partly cloudy | 31° /11° | 0 mm | 8 | |
| Aug. 28 | Cloudy | 31° /12° | 0 mm | 8 | |
| Aug. 29 | Sunny | 30° /10° | 0 mm | 8 | |
| Aug. 30 | Sunny | 30° /11° | 0 mm | 8 | |
| Aug. 31 | Overcast | 29° /10° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Santa Rosa in August 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 Rosa forecast closer to your planned date for the most up-to-date weather information.
Santa Rosa in August - FAQ
What are the expected maximum and minimum temperatures in Santa Rosa during August?
Enjoy moderate daytime temperatures of up to 29° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Santa Rosa during August?
Rainfall in Santa Rosa during August 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 Santa Rosa during August?
The average wind speed in Santa Rosa during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Santa Rosa
Explore the daily rainfall trends and prepare for Santa Rosas August weather 💧
UV exposure in Santa Rosa during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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