Measurements:
°C
°F
Charlestown
18°F
SE 17 mph
Feels like: 2°F
Precip: 0%
World Resorts USA Charlestown Weather

7 Day Weather Forecast

12.22
sun
DAY
22°F
SE 14 mph
precip
0%
NIGHT
20°F
S 9 mph
precip
0%
12.23
mon
DAY
26°F
NE 4 mph
precip
0%
NIGHT
38°F
NE 20 mph
precip
0%
12.24
tue
DAY
38°F
E 14 mph
precip
0%
NIGHT
32°F
SW 13 mph
precip
0%
12.25
wed
DAY
34°F
SW 11 mph
precip
0%
NIGHT
30°F
S 7 mph
precip
0%
12.26
thu
DAY
36°F
SE 3 mph
precip
0%
NIGHT
34°F
S 10 mph
precip
80%
12.27
fri
DAY
36°F
SW 16 mph
precip
20%
NIGHT
32°F
SW 16 mph
precip
66%
12.28
sat
DAY
36°F
SW 16 mph
precip
0%
NIGHT
30°F
SW 11 mph
precip
0%

Charlestown Sea Water Temperature in December, °F

Select Year: 2024 2023 2022

The average sea surface temperature in December 2024 for Charlestown was 9.8°F. The maximum and minimum values were 7.9°F and 11.5°F respectively.

Charlestown on the Weather Map

Best Time to Visit Charlestown
The most sunny months:
November 16 days
September 14 days
October 13 days
The most warm months:
July 80.6 °F
August 79.3 °F
June 72.5 °F
Warmest sea temperature:
August 73.4 °F
July 71.8 °F
September 70.6 °F
The most cold months:
January 36.1 °F
February 36.6 °F
December 42.1 °F
The most rainy months:
October 4 days
April 3 days
November 3 days
The most windy months:
January 12 mph
March 12 mph
December 12 mph