Napa Valley weather in May
Are you planning a trip to Napa Valley in May and wondering what kind of weather to expect? This page has all the details you need.
What is the weather like in Napa Valley in May?
Napa Valley is a region in the United States of America. May in Napa Valley generally has warm temperatures, with low precipitation.
The average maximum temperatures are warm and range from 23°C in American Canyon to 26°C in St. Helena. Nighttime temperatures generally drop to 10°C in St. Helena and 9°C in American Canyon.
In May, precipitation varies across different areas. From low rainfall in American Canyon with an average of 13 mm to low rainfall in Calistoga with 24 mm. The city Napa usually sees around 310 hours of sunlight, indicating many sunny days.
For a closer look at May's conditions in Napa Valley, see the map below. For a more detailed look at Napa Valley's yearly weather, check out our Napa Valley climate page.
Where to go in Napa Valley in May
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Popular destinations
What is the weather like in May for the 5 most popular destinations in Napa Valley?
Napa
In May Napa generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 10°C and low monthly rainfall. So on average the conditions are perfect that month.
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Calistoga
In May Calistoga generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 9°C and low monthly rainfall. So on average the conditions are perfect that month.
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St. Helena
In May St. Helena generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 10°C and low monthly rainfall. So on average the conditions are perfect that month.
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Yountville
In May Yountville generally has high temperatures with maximum daytime temperatures around 25°C, minimum nighttime temperatures around 10°C and low monthly rainfall. So on average the conditions are perfect that month.
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American Canyon
In May American Canyon generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 9°C and low monthly rainfall. So on average the conditions are perfect that month.
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Is your destination not in the list? Have a look at other destinations in Napa Valley, in the United States of America.
Is May the best time to visit Napa Valley?
We believe that May is one of the best times to visit Napa Valley with overall perfect weather in Napa.
Generally speaking, April, May, June, July, August, September and October provide perfect weather in Napa. The weather in February and December, on the other hand, tends to be unpleasant.
Interested in more climate information?
We have much more information about the climate in Napa Valley.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.