Weather in Napa in Summer
| June | July | August | ||||
| Average day temperature: | ||||||
| Average day temperature: | 81.4°F | 83.9°F | 85.2°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 56.1°F | 57.9°F | 59.0°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 25 days | 25 days | 25 days | |||
| Day length: | ||||||
| Day length: | 14.7 - 14.8 h. | 14.1 - 14.8 h. | 13.0 - 14.1 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 0 days | 0 days | 0 days | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 0.0 in. | 0.0 in. | 0.0 in. | |||
Day & Night air temperature, °F
Precipitation total, in.
Sunny, partly cloudy and cloudy days
Wind speed, mph
Average sunny hours
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Napa
Napa on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Napa
Local time: 17:49
September 13, sunday
1800
73°F
NE
8 mph
8 mph
2100
61°F
E
4 mph
4 mph
September 14, monday
0000
57°F
E
4 mph
4 mph
0300
55°F
E
2 mph
2 mph
0600
55°F
SE
2 mph
2 mph
0900
68°F
E
2 mph
2 mph
1200
84°F
NE
6 mph
6 mph
1500
84°F
NE
12 mph
12 mph
