Weather information for the Sonoma Valley area is provided below. Average temperatures, climate details and current forecasts are included!
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We also have the following visitor guides in California. Click on any additional guides you would like to receive.





Temecula Valley Southern California Wine Country
Temecula Valley





Lake Havasu City Western Arizona
Lake Havasu City





Visalia Sequoia and King's Canyon National Parks
Visalia


Costa Mesa Southern California
Costa Mesa





Carmel-By-The-Sea Monterey Peninsula
Carmel-By-The-Sea





Oceanside Southern California
Oceanside





Visit Buena Park Southern California
Visit Buena Park





Catalina Island Southern California
Catalina Island





Vallejo Bay Area
Vallejo
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- Arizona
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- Idaho
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- Michigan
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- New Mexico
- Ohio
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Climate
Sonoma Valley has a Mediterranean climate, warm and dry in the summer and wet and cool in the winter. It rarely snows here - winters are rainy, irrigating the vines.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | ||
Avg. High | 58 | 62 | 65 | 70 | 74 | 80 | 82 | 82 | 82 | 77 | 65 | 58 | |
Avg. Low | 40 | 43 | 44 | 46 | 49 | 52 | 53 | 53 | 53 | 49 | 43 | 39 | |
Precipitation | 6.3 | 6.1 | 4.7 | 1.7 | 0.8 | 0.2 | 0.1 | 0.1 | 0.5 | 1.8 | 4.3 | 4.5 | |