Weather in Chesapeake: September
 |
Average day temperature: | 78.7°F |
| Average night temperature: | 69.7°F | |
 |
Sea water temperature: | 77.3°F |
 |
Number of sunny days: | 12 days |
| Day length: | 11.8 - 13.0 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 1.3 in. | |
| more information | ||
forecast
| Chesapeake |
temperature
| Chesapeake |
Air temperature in September, °F
The highest day temperature during September of 2025 was 95°F. At the same time the lowest night temperature was 60°F. Daily and nightly averages during September were 78.5°F and 68.6°F.
Sea water temperature in Chesapeake in September, °F
The average sea water temperature in September of 2025 was 74.6°F. The highest and lowest sea temperatures during the month were 80.1°F and 68.9°F.
Number of sunny, partly cloudy and cloudy days in September is almost equal.
Precipitation total in September, in.
Precipitation total value in Chesapeake in September is 1.3 in. Other months of the year show relatively similar values.
The average wind speed value in September is 9.0 mph
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: 7.4.
Best time for vacation in Chesapeake
Chesapeake on a weather map
18 mph
17 mph
14 mph
11 mph
9 mph
7 mph
4 mph
8 mph
