Measurements:
°C
°F
CURRENT WEATHER
08:24
Charlestown
40°F
NW 6 mph
Feels like: 38°F
Precip: 65%
World Resorts USA Charlestown Weather

7 Day Weather Forecast

04.03
fri
DAY
42°F
NE 8 mph
precip
0%
NIGHT
44°F
NE 17 mph
precip
0%
04.04
sat
DAY
46°F
W 13 mph
precip
0%
NIGHT
40°F
W 17 mph
precip
0%
04.05
sun
DAY
44°F
NE 24 mph
precip
0%
NIGHT
44°F
SE 8 mph
precip
0%
04.06
mon
DAY
42°F
E 17 mph
precip
0%
NIGHT
42°F
NE 9 mph
precip
62%
04.07
tue
DAY
44°F
E 17 mph
precip
0%
NIGHT
36°F
S 21 mph
precip
0%
04.08
wed
DAY
36°F
SW 9 mph
precip
0%
NIGHT
34°F
NW 6 mph
precip
0%
04.09
thu
DAY
38°F
N 8 mph
precip
0%
NIGHT
38°F
NE 8 mph
precip
0%

Charlestown Sea Water Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Charlestown was 6.8°F. The maximum and minimum values were 5.4°F and 8.5°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 35.0 °F
February 35.5 °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