Measurements:
°C
°F
CURRENT WEATHER
08:25
Charlestown
34°F
SE 5 mph
Feels like: 26°F
Precip: 0%
World Resorts USA Charlestown Weather

7 Day Weather Forecast

02.21
sat
DAY
36°F
SW 1 mph
precip
88%
NIGHT
32°F
W 13 mph
precip
0%
02.22
sun
DAY
32°F
W 19 mph
precip
0%
NIGHT
32°F
SW 35 mph
precip
0%
02.23
mon
DAY
30°F
S 42 mph
precip
100%
NIGHT
26°F
SE 18 mph
precip
0%
02.24
tue
DAY
30°F
SE 12 mph
precip
0%
NIGHT
22°F
E 11 mph
precip
0%
02.25
wed
DAY
36°F
N 10 mph
precip
0%
NIGHT
36°F
NE 14 mph
precip
41%
02.26
thu
DAY
38°F
NE 9 mph
precip
100%
NIGHT
36°F
NW 7 mph
precip
100%
02.27
fri
DAY
36°F
SW 21 mph
precip
100%
NIGHT
32°F
S 20 mph
precip
100%

Charlestown Sea Water Temperature in February, °F

Select Year: 2026 2025 2024

The average sea surface temperature in February 2026 for Charlestown was 2.1°F. The maximum and minimum values were 1.6°F and 2.8°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 35.0 °F
February 36.2 °F
December 41.0 °F
The most rainy months:
October 4 days
November 3 days
April 3 days
The most windy months:
January 13 mph
December 13 mph
March 12 mph
more details