World Resorts

USA

Block Island Weather

Block Island 14 Days Forecast

30.12
tue

Day

27°F

E 36 mph

Precip.
0%

Night

32°F

E 32 mph

Precip.
0%

31.12
wed

Day

32°F

E 24 mph

Precip.
0%

Night

36°F

E 30 mph

Precip.
0%

01.01
thu

Day

30°F

SE 19 mph

Precip.
0%

Night

28°F

E 19 mph

Precip.
0%

02.01
fri

Day

28°F

E 20 mph

Precip.
0%

Night

34°F

E 14 mph

Precip.
0%

03.01
sat

Day

30°F

E 9 mph

Precip.
0%

Night

30°F

SE 6 mph

Precip.
0%

04.01
sun

Day

30°F

NE 16 mph

Precip.
0%

Night

27°F

SW 14 mph

Precip.
0%

05.01
mon

Day

30°F

W 6 mph

Precip.
0%

Night

43°F

N 19 mph

Precip.
22%

06.01
tue

Day

48°F

N 34 mph

Precip.
100%

Night

39°F

E 23 mph

Precip.
100%

07.01
wed

Day

30°F

E 31 mph

Precip.
0%

Night

30°F

E 26 mph

Precip.
0%

08.01
thu

Day

34°F

SE 10 mph

Precip.
0%

Night

32°F

SE 15 mph

Precip.
0%

09.01
fri

Day

32°F

SE 9 mph

Precip.
0%

Night

36°F

E 9 mph

Precip.
0%

10.01
sat

Day

41°F

N 11 mph

Precip.
100%

Night

41°F

E 8 mph

Precip.
100%

11.01
sun

Day

37°F

SE 8 mph

Precip.
0%

Night

34°F

SE 19 mph

Precip.
0%

12.01
mon

Day

32°F

NE 12 mph

Precip.
0%

Night

36°F

W 10 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 47.4°F. The highest and lowest sea temperatures during the month were 51.6°F and 43.5°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.