World Resorts

USA

Block Island Weather

Block Island 14 Days Forecast

23.12
tue

Day

37°F

E 14 mph

Precip.
100%

Night

41°F

E 19 mph

Precip.
0%

24.12
wed

Day

43°F

SE 30 mph

Precip.
0%

Night

36°F

SW 8 mph

Precip.
0%

25.12
thu

Day

39°F

NE 29 mph

Precip.
0%

Night

34°F

SE 25 mph

Precip.
0%

26.12
fri

Day

27°F

S 16 mph

Precip.
0%

Night

28°F

W 9 mph

Precip.
100%

27.12
sat

Day

30°F

SW 14 mph

Precip.
84%

Night

30°F

S 6 mph

Precip.
0%

28.12
sun

Day

36°F

NE 12 mph

Precip.
0%

Night

45°F

NE 26 mph

Precip.
100%

29.12
mon

Day

30°F

E 32 mph

Precip.
0%

Night

28°F

E 39 mph

Precip.
0%

30.12
tue

Day

28°F

E 29 mph

Precip.
0%

Night

30°F

SE 26 mph

Precip.
0%

31.12
wed

Day

30°F

SE 19 mph

Precip.
0%

Night

28°F

SE 14 mph

Precip.
0%

01.01
thu

Day

34°F

E 19 mph

Precip.
0%

Night

39°F

E 24 mph

Precip.
0%

02.01
fri

Day

39°F

E 14 mph

Precip.
0%

Night

39°F

E 3 mph

Precip.
0%

03.01
sat

Day

43°F

NE 10 mph

Precip.
0%

Night

46°F

NE 14 mph

Precip.
0%

04.01
sun

Day

45°F

NE 22 mph

Precip.
0%

Night

45°F

E 17 mph

Precip.
0%

05.01
mon

Day

34°F

SE 22 mph

Precip.
0%

Night

30°F

S 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:

2025

2024

2023

The average sea water temperature in December of 2025 was 48.4°F. The highest and lowest sea temperatures during the month were 51.6°F and 45.0°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 43.1°F. The highest and lowest sea temperatures during the month were 47.1°F and 41.0°F.