Weather information for the Napa 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
Lake Havasu City Western Arizona
Lake Havasu City
Visalia Sequoia and King's Canyon National Parks
Costa Mesa Southern California
Oceanside Southern California
Visit Buena Park Southern California
Visit Buena Park
Santa Rosa Sonoma County
Catalina Island Southern California
Vallejo Bay Area
We also have visitor guides available in states highlighted in blue below. Click on any state to see what's available.
- New Mexico
Close to the ocean and yet shielded by mountains, Napa Valley has a wet but temperate climate ideal for both vineyards and visitors. The bulk of the year features long, warm days with little moisture, followed by cool evenings. During winter there is more moisture, but temperatures never become extreme in either direction.