Weather in Wilmington: December
 |
Average day temperature: | 56.6°F |
| Average night temperature: | 46.7°F | |
 |
Sea water temperature: | 57.8°F |
 |
Number of sunny days: | 14 days |
| Day length: | 9.9 - 10.0 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 1.0 in. | |
| more information | ||
forecast
| Wilmington |
temperature
| Wilmington |
Air temperature in December, °F
The highest day temperature during December of 2025 was 72°F. At the same time the lowest night temperature was 24°F. Daily and nightly averages during December were 54.7°F and 41.4°F.
Sea water temperature in Wilmington in December, °F
The average sea water temperature in December of 2025 was 55.5°F. The highest and lowest sea temperatures during the month were 60.6°F and 52.7°F.
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Wilmington in December is 1.0 in. Other months of the year show relatively similar values.
The average wind speed value in December is 6.9 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 December is: 6.1.
Best time for vacation in Wilmington
Wilmington on a weather map
10 mph
9 mph
14 mph
16 mph
16 mph
14 mph
13 mph
13 mph
