Weather in Napa in Winter
| December | January | February | ||||
| Average day temperature: | ||||||
| Average day temperature: | 54.5°F | 54.6°F | 57.7°F | |||
| Average night temperature: | ||||||
| Average night temperature: | 45.1°F | 44.0°F | 44.1°F | |||
| Number of sunny days: | ||||||
| Number of sunny days: | 12 days | 14 days | 16 days | |||
| Day length: | ||||||
| Day length: | 9.5 - 9.7 h. | 9.6 - 10.3 h. | 10.3 - 11.3 h. | |||
| Number of rainy days: | ||||||
| Number of rainy days: | 3 days | 3 days | 1 day | |||
| Precipitation totals: | ||||||
| Precipitation totals: | 1.3 in. | 1.3 in. | 0.5 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: 22:58
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
