Measurements:
°C
°F
CURRENT WEATHER
00:22
Block Island
68°F
E 11 mph
Feels like: 68°F
Precip: 7%
World Resorts USA Block Island Weather

7 Day Weather Forecast

06.25
thu
DAY
76°F
NE 9 mph
precip
2%
NIGHT
70°F
N 16 mph
precip
13%
06.26
fri
DAY
70°F
N 13 mph
precip
14%
NIGHT
72°F
NE 13 mph
precip
14%
06.27
sat
DAY
68°F
W 4 mph
precip
47%
NIGHT
68°F
SW 2 mph
precip
18%
06.28
sun
DAY
68°F
NW 5 mph
precip
13%
NIGHT
68°F
N 6 mph
precip
13%
06.29
mon
DAY
70°F
NE 9 mph
precip
32%
NIGHT
70°F
NE 14 mph
precip
36%
06.30
tue
DAY
74°F
NE 6 mph
precip
10%
NIGHT
70°F
SW 8 mph
precip
10%
07.01
wed
DAY
68°F
W 14 mph
precip
10%
NIGHT
66°F
NW 10 mph
precip
16%

Block Island Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Block Island was 14.6°F. The maximum and minimum values were 12.0°F and 16.0°F respectively.

Block Island on the Weather Map

Best Time to Visit Block Island
The most sunny months:
November 16 days
September 14 days
December 14 days
The most warm months:
July 77.2 °F
August 76.1 °F
September 70.9 °F
Warmest sea temperature:
August 72.3 °F
July 70.7 °F
September 70.3 °F
The most cold months:
January 35.4 °F
February 35.4 °F
December 41.7 °F
The most rainy months:
October 4 days
January 3 days
March 3 days
The most windy months:
December 16 mph
January 16 mph
November 16 mph
more details