Weather in Napa: May
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Average day temperature: | 76.5°F |
| Average night temperature: | 52.4°F | |
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Number of sunny days: | 24 days |
| Day length: | 13.8 - 14.6 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.2 in. | |
| more information | ||
14 days
forecast
forecast
| Napa |
weather in
June
June
| Napa |
Air temperature in May, °F
Show year:
2025
2024
2023
The highest day temperature during May of 2025 was 99°F. At the same time the lowest night temperature was 46°F. Daily and nightly averages during May were 80.3°F and 52.3°F.
Sunny, partly cloudy and cloudy days
Mostly all days in May are sunny but cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Napa in May is 0.2 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 6.0 mph It makes May one of the most windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 12.1.
Best time for vacation in Napa
Napa on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Napa
Local time: 21:31
December 05, friday
0000
43°F
S
2 mph
2 mph
0300
43°F
SW
2 mph
2 mph
0600
39°F
SW
2 mph
2 mph
0900
41°F
SW
2 mph
2 mph
1200
54°F
SW
0 mph
0 mph
1500
61°F
NE
2 mph
2 mph
1800
55°F
N
2 mph
2 mph
2100
50°F
SE
1 mph
1 mph
