Napa Weather in May
In Napa, May brings high daytime temperatures around 25°C (77°F), with nights cooling to 10°C (50°F). Some rainfall is to be expected.
Rainfall in Napa in May
The climate data from previous years indicates about 3 days of rain, averaging 16 mm (0.6 in) for the month. The occasional light shower is possible, but rain is rarely an issue this month.
Temperature in Napa in May
If you're visiting Napa in May, expect perfect temperatures with highs of 25°C (77°F) and overnight lows of 10°C (50°F). This kind of day-to-night contrast is typical for this time of year. Nights fall to 10°C (50°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Napa in May
Expect sunny days throughout the month, with an estimated 310 hours of sunshine. This makes it a pleasant time to visit Napa.If you're inclined towards comfortable temperatures and drier conditions, May is a good time to visit Napa.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Napa's climate page.
Napa Temperature in May
Min Temperature
10°C (50°F)
Max Temperature
25°C (77°F)
Chance of Rain
10%
Precipitation
16 mm (0.6 in)
Rainy days
3 days
Sunshine
310 hours *
Percentage Sunshine
76% *
Best Places 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. See all of the United States of America in May →
perfect weather
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tolerable
unpleasant
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What to Wear in Napa in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Dry conditions mean you won't need to worry about rain protection. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Napa in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Napa's climate page.
See the full Napa climate overview or explore weather in the United States of America.
