Napa weather in May (California, United States of America)

What does the weather outlook for Napa look like in May? Use this page to get an overview of the month’s weather conditions.

Temperatures

During May, Napa is known for its perfect weather, characterized by high temperatures and low rainfall. Daytime temperatures hover around 25°C, while nights can cool down to about 10°C.

Precipitation

Napa in May usually receives low rainfall, averaging around 16 mm for the month. When we look at the climate data from the last 30 years, you can expect around 3 days of rain.

Average sunshine

There are approximately 310 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

If you're inclined towards comfortable temperatures and drier conditions, May is a prime time to visit Napa. April, May, June, July, August, September and October typically offer the best circumstances. While February and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Napa climate page with graphs.

 

Napa, monthly averages in May

Min Temperature 10°C  

Max Temperature 25°C  

Chance of Rain 10%  

Precipitation 16 mm  

Rainy days 3 days  

Sunshine 310 hours *  

Percentage Sunshine 76% *  

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

Where to go in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Napa, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

10/10

Walking

10/10

Barbeque

9/10

Camping

5/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Napa.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find 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 travel conditions. Find out where to go with our weather planner.