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Napa
Weather averages
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Climate in Napa (California), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Napa, the United States of America

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Napa, the United States of America

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* Data from: Healdsburg, the United States of America (61 KM, 38 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Napa, the United States of America

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* Data from: Healdsburg, the United States of America (61 KM, 38 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Napa, the United States of America

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Napa, the United States of America

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Weather Forecasts for Napa (CA)

Fri   Apr 19
21°C | 10°C
SW 22 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Sat   Apr 20
24°C | 9°C
W 22 km/h
clear and no rain

clear and no rain

hourly forecast
Sun   Apr 21
24°C | 9°C
SW 14 km/h
clear and no rain

clear and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Napa in the United States of America

During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Does Napa have a dry season?
    Yes, the months of May, June, July, August and September are very dry.
  • Which is the warmest month in Napa?
    September has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Napa?
    The coldest month is January with an average maximum temperature of 14°C.
  • Which is the wettest month in Napa?
    December tops the wettest month list with 120 mm of rainfall.
  • Which is the driest month in Napa?
    July is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Napa?
    May is the sunniest month with an average of 310 hours of sunshine.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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