Weather in Block Island: December
 |
Average day temperature: | 43.4°F |
| Average night temperature: | 40.9°F | |
 |
Sea water temperature: | 50.4°F |
 |
Number of sunny days: | 12 days |
| Day length: | 9.2 - 9.4 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 1.4 in. | |
| more information | ||
forecast
| Block Island |
temperature
| Block Island |
Air temperature in December, °F
The highest day temperature during December of 2024 was 55°F. At the same time the lowest night temperature was 22°F. Daily and nightly averages during December were 41.5°F and 39.7°F.
Sea water temperature in Block Island in December, °F
The average sea water temperature in December of 2024 was 49.5°F. The highest and lowest sea temperatures during the month were 54.1°F and 45.9°F.
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in Block Island in December is 1.4 in. Other months of the year show relatively similar values.
The average wind speed value in December is 15.3 mph It makes December one of the most windy months of the year.
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: 4.9.
Best time for vacation in Block Island
Block Island on a weather map
15 mph
11 mph
5 mph
4 mph
9 mph
6 mph
6 mph
5 mph
