Measurements:
°C
°F
Charlestown
18°F
S 12 mph
Feels like: 2°F
Precip: 0%
World Resorts USA Charlestown Weather

7 Day Weather Forecast

12.05
fri
DAY
26°F
N 5 mph
precip
0%
NIGHT
36°F
NE 4 mph
precip
0%
12.06
sat
DAY
42°F
N 9 mph
precip
0%
NIGHT
38°F
E 11 mph
precip
0%
12.07
sun
DAY
36°F
SE 5 mph
precip
0%
NIGHT
40°F
NW 3 mph
precip
81%
12.08
mon
DAY
30°F
S 27 mph
precip
69%
NIGHT
18°F
SE 17 mph
precip
0%
12.09
tue
DAY
28°F
E 12 mph
precip
0%
NIGHT
40°F
NE 24 mph
precip
0%
12.10
wed
DAY
48°F
N 15 mph
precip
100%
NIGHT
50°F
NE 20 mph
precip
0%
12.11
thu
DAY
44°F
E 21 mph
precip
100%
NIGHT
30°F
E 22 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 9.0°F. The maximum and minimum values were 6.5°F and 11.5°F respectively.

Charlestown on the Weather Map

Best Time to Visit Charlestown
The most sunny months:
November 17 days
September 14 days
October 14 days
The most warm months:
July 79.6 °F
August 78.4 °F
September 72.1 °F
Warmest sea temperature:
August 73.1 °F
July 71.7 °F
September 70.6 °F
The most cold months:
January 35.7 °F
February 36.2 °F
December 41.7 °F
The most rainy months:
October 4 days
November 3 days
January 3 days
The most windy months:
March 12 mph
January 12 mph
November 12 mph