Weather in Napa: July
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Average day temperature: | 83.9°F |
| Average night temperature: | 57.9°F | |
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Number of sunny days: | 25 days |
| Day length: | 14.1 - 14.8 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.0 in. | |
| more information | ||
14 days
forecast
forecast
| Napa |
weather in
August
August
| Napa |
Air temperature in July, °F
Show year:
2026
2025
2024
The highest day temperature during July of 2026 was 89°F. At the same time the lowest night temperature was 52°F. Daily and nightly averages during July were 77.8°F and 56.5°F.
Sunny, partly cloudy and cloudy days
Mostly all days in July are sunny but cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Napa in July is 0.0 in. Other months of the year show relatively similar values.
Wind speed in July, mph
The average wind speed value in July is 5.7 mph It makes July 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 July is: 12.5.
Best time for vacation in Napa
Napa on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Napa
Local time: 13:04
August 23, sunday
1500
90°F
NE
7 mph
7 mph
1800
81°F
NE
6 mph
6 mph
2100
66°F
NE
4 mph
4 mph
August 24, monday
0000
59°F
NE
4 mph
4 mph
0300
55°F
E
4 mph
4 mph
0600
55°F
NE
3 mph
3 mph
0900
63°F
NE
4 mph
4 mph
1200
79°F
NE
6 mph
6 mph
