World Resorts

USA

Block Island Weather

Block Island 14 Days Forecast

29.04
wed

Day

54°F

NW 9 mph

Precip.
0%

Night

48°F

N 6 mph

Precip.
0%

30.04
thu

Day

48°F

W 7 mph

Precip.
100%

Night

46°F

SE 17 mph

Precip.
0%

01.05
fri

Day

48°F

E 17 mph

Precip.
0%

Night

46°F

SE 13 mph

Precip.
0%

02.05
sat

Day

46°F

NE 11 mph

Precip.
0%

Night

46°F

SE 11 mph

Precip.
0%

03.05
sun

Day

46°F

E 18 mph

Precip.
0%

Night

46°F

E 11 mph

Precip.
0%

04.05
mon

Day

50°F

NE 19 mph

Precip.
0%

Night

50°F

NE 18 mph

Precip.
0%

05.05
tue

Day

52°F

NE 17 mph

Precip.
0%

Night

54°F

NE 31 mph

Precip.
100%

06.05
wed

Day

50°F

E 10 mph

Precip.
100%

Night

50°F

NE 5 mph

Precip.
22%

07.05
thu

Day

52°F

NE 11 mph

Precip.
0%

Night

52°F

N 14 mph

Precip.
0%

08.05
fri

Day

54°F

NE 21 mph

Precip.
100%

Night

50°F

SE 14 mph

Precip.
0%

09.05
sat

Day

52°F

NE 9 mph

Precip.
0%

Night

52°F

NE 9 mph

Precip.
0%

10.05
sun

Day

52°F

W 8 mph

Precip.
0%

Night

52°F

N 8 mph

Precip.
0%

11.05
mon

Day

54°F

N 7 mph

Precip.
0%

Night

52°F

N 7 mph

Precip.
0%

12.05
tue

Day

52°F

W 9 mph

Precip.
0%

Night

52°F

NW 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 April of 2026 was 42.4°F. The highest and lowest sea temperatures during the month were 46.0°F and 39.0°F.

Show year:

2025

2024

2023

The average sea water temperature in May of 2025 was 52.0°F. The highest and lowest sea temperatures during the month were 55.4°F and 46.2°F.