Average monthly hours of sunshine in Napa (CA)
The monthly total of sunhours over the year in Napa (California), the United States of America.
- On average, May is the sunniest month with 310 hours of sunshine.
- December has on average the lowest amount of sunshine with 160 hours.
Weather Forecasts for Napa (CA)
clear and no rain
almost clear and no rain
clear and no rain