World Resorts

USA

Charlestown Weather

Charlestown 14 Days Forecast

18.03
wed

Day

32°F

S 7 mph

Precip.
0%

Night

32°F

N 6 mph

Precip.
0%

19.03
thu

Day

36°F

N 7 mph

Precip.
0%

Night

37°F

NE 9 mph

Precip.
0%

20.03
fri

Day

37°F

NE 8 mph

Precip.
0%

Night

41°F

NE 17 mph

Precip.
100%

21.03
sat

Day

41°F

W 6 mph

Precip.
0%

Night

41°F

NW 3 mph

Precip.
78%

22.03
sun

Day

43°F

NE 12 mph

Precip.
0%

Night

43°F

NE 17 mph

Precip.
60%

23.03
mon

Day

39°F

SW 19 mph

Precip.
100%

Night

34°F

NW 14 mph

Precip.
47%

24.03
tue

Day

36°F

SW 13 mph

Precip.
100%

Night

34°F

E 7 mph

Precip.
56%

25.03
wed

Day

39°F

E 14 mph

Precip.
0%

Night

39°F

NE 12 mph

Precip.
0%

26.03
thu

Day

45°F

N 24 mph

Precip.
68%

Night

48°F

NE 32 mph

Precip.
0%

27.03
fri

Day

46°F

E 19 mph

Precip.
100%

Night

32°F

SE 14 mph

Precip.
100%

28.03
sat

Day

30°F

SE 17 mph

Precip.
0%

Night

30°F

E 8 mph

Precip.
0%

29.03
sun

Day

39°F

E 20 mph

Precip.
48%

Night

28°F

S 21 mph

Precip.
0%

30.03
mon

Day

32°F

S 19 mph

Precip.
0%

Night

30°F

NW 9 mph

Precip.
0%

31.03
tue

Day

36°F

NE 8 mph

Precip.
0%

Night

37°F

NE 17 mph

Precip.
0%

sea water
temperature

Charlestown

monthly
weather

Charlestown

current
weather

Charlestown

7 days
forecast

Charlestown

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in March of 2026 was 36.9°F. The highest and lowest sea temperatures during the month were 38.7°F and 35.2°F.

Show year:

2025

2024

2023

The average sea water temperature in April of 2025 was 44.2°F. The highest and lowest sea temperatures during the month were 47.3°F and 41.7°F.