Weather in Napa: September
 |
Average day temperature: | 86.4°F |
| Average night temperature: | 58.8°F | |
 |
Number of sunny days: | 27 days |
| Day length: | 11.8 - 13.0 hours | |
 |
Number of rainy days: | 0 days |
| Precipitation totals: | 0.1 in. | |
| more information | ||
14 days
forecast
forecast
| Napa |
weather in
October
October
| Napa |
Air temperature in September, °F
Show year:
2023
2022
2021
The highest day temperature during September of 2023 was 90°F. At the same time the lowest night temperature was 46°F. Day and night temperature averages during September were 80.7°F and 52.7°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Napa in September is 0.1 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 4.3 mph
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 September is: 11.1.
Best time for vacation in Napa
Napa on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Napa
Local time: 12:43
May 11, saturday
1500
81°F
NE
7 mph
7 mph
1800
75°F
NE
7 mph
7 mph
2100
63°F
NE
5 mph
5 mph
May 12, sunday
0000
55°F
NE
4 mph
4 mph
0300
54°F
NE
4 mph
4 mph
0600
54°F
NE
3 mph
3 mph
0900
64°F
NE
4 mph
4 mph
1200
73°F
NE
6 mph
6 mph
