Weather in Napa in Summer
| June | July | August | ||||
| Average day temperature: | 82.4°F | 86.3°F | 87.1°F | |||
| Average night temperature: | 56.9°F | 58.8°F | 59.9°F | |||
| Number of sunny days: | 26 days | 29 days | 29 days | |||
| Day length: | 14.7 - 14.8 h. | 14.1 - 14.8 h. | 13.0 - 14.1 h. | |||
| Number of rainy days: | 0 days | 0 days | 0 days | |||
| Precipitation totals: | 0.0 in. | 0.0 in. | 0.0 in. | |||
Day & Night air temperature, °F
June
July
August
0
14
28
42
56
70
84
98
112
87.1
86.3
82.4
59.9
58.8
56.9
| Day temperature | Night temperature |
Precipitation total, in.
June
July
August
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0
0
0
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
2
2
3
29
29
26
| Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
June
July
August
0.0
1.0
2.0
3.0
4.1
5.1
6.1
7.1
4.9
5.5
5.9
Average sunny hours
June
July
August
0
2
4
6
8
10
12
14
16
12.8
13.5
13.1
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
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Napa
Local time: 04:35
April 04, friday
0600
43°F
SE
5 mph
5 mph
0900
54°F
S
8 mph
8 mph
1200
68°F
S
11 mph
11 mph
1500
73°F
S
9 mph
9 mph
1800
66°F
S
4 mph
4 mph
2100
54°F
E
5 mph
5 mph
April 05, saturday
0000
50°F
E
4 mph
4 mph
0300
46°F
SE
4 mph
4 mph
