21.07
tue
tue
Day
73°F
NW 16 mph
Precip.
13%
13%
Night
72°F
N 27 mph
Precip.
52%
52%
22.07
wed
wed
Day
72°F
NE 16 mph
Precip.
49%
49%
Night
70°F
E 6 mph
Precip.
46%
46%
23.07
thu
thu
Day
70°F
SE 14 mph
Precip.
3%
3%
Night
68°F
S 8 mph
Precip.
4%
4%
24.07
fri
fri
Day
68°F
NE 4 mph
Precip.
3%
3%
Night
66°F
NW 9 mph
Precip.
18%
18%
25.07
sat
sat
Day
68°F
W 13 mph
Precip.
5%
5%
Night
68°F
N 6 mph
Precip.
7%
7%
26.07
sun
sun
Day
70°F
NW 6 mph
Precip.
4%
4%
Night
68°F
NE 8 mph
Precip.
6%
6%
27.07
mon
mon
Day
72°F
NE 19 mph
Precip.
12%
12%
Night
70°F
NE 17 mph
Precip.
83%
83%
sea water
temperature
temperature
| Block Island |
monthly
weather
weather
| Block Island |
current
weather
weather
| Block Island |
14 days
forecast
forecast
| Block Island |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 66.9°F. The highest and lowest sea temperatures during the month were 68.2°F and 65.5°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 69.0°F. The highest and lowest sea temperatures during the month were 71.1°F and 66.9°F.
Air temperature in Block Island, °F
Precipitation total in Block Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Block Island
Block Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Block Island
Local time: 09:43
July 21, tuesday
1200
73°F
NW
16 mph
16 mph
1500
73°F
NW
16 mph
16 mph
1800
70°F
NW
17 mph
17 mph
2100
72°F
N
19 mph
19 mph
July 22, wednesday
0000
72°F
N
27 mph
27 mph
0300
72°F
NE
23 mph
23 mph
0600
70°F
NE
13 mph
13 mph
0900
72°F
NE
14 mph
14 mph
