World Resorts

USA

Block Island Weather

Block Island 14 Days Forecast

19.03
thu

Day

37°F

NW 9 mph

Precip.
0%

Night

39°F

NE 11 mph

Precip.
0%

20.03
fri

Day

37°F

NE 8 mph

Precip.
0%

Night

43°F

N 17 mph

Precip.
0%

21.03
sat

Day

41°F

S 15 mph

Precip.
0%

Night

41°F

W 7 mph

Precip.
0%

22.03
sun

Day

41°F

NE 14 mph

Precip.
0%

Night

43°F

NE 19 mph

Precip.
0%

23.03
mon

Day

45°F

NE 13 mph

Precip.
65%

Night

36°F

S 14 mph

Precip.
100%

24.03
tue

Day

36°F

S 17 mph

Precip.
74%

Night

36°F

NE 4 mph

Precip.
0%

25.03
wed

Day

39°F

E 23 mph

Precip.
29%

Night

28°F

SE 21 mph

Precip.
0%

26.03
thu

Day

28°F

NW 7 mph

Precip.
0%

Night

45°F

N 29 mph

Precip.
0%

27.03
fri

Day

45°F

NE 24 mph

Precip.
100%

Night

30°F

NE 17 mph

Precip.
100%

28.03
sat

Day

25°F

SW 29 mph

Precip.
100%

Night

23°F

NW 25 mph

Precip.
51%

29.03
sun

Day

25°F

SE 10 mph

Precip.
0%

Night

34°F

N 11 mph

Precip.
29%

30.03
mon

Day

34°F

SW 20 mph

Precip.
100%

Night

36°F

W 5 mph

Precip.
0%

31.03
tue

Day

37°F

NW 7 mph

Precip.
0%

Night

41°F

N 11 mph

Precip.
0%

sea water
temperature

Block Island

monthly
weather

Block Island

current
weather

Block Island

7 days
forecast

Block Island

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 44.0°F. The highest and lowest sea temperatures during the month were 46.9°F and 42.3°F.