19.05
tue
tue
Day
61°F
NE 16 mph
Precip.
0%
0%
Night
59°F
NE 18 mph
Precip.
100%
100%
20.05
wed
wed
Day
61°F
NE 18 mph
Precip.
0%
0%
Night
59°F
SE 10 mph
Precip.
82%
82%
21.05
thu
thu
Day
57°F
SW 7 mph
Precip.
0%
0%
Night
54°F
N 6 mph
Precip.
0%
0%
22.05
fri
fri
Day
54°F
W 6 mph
Precip.
0%
0%
Night
55°F
NE 9 mph
Precip.
0%
0%
23.05
sat
sat
Day
54°F
NE 11 mph
Precip.
69%
69%
Night
54°F
W 11 mph
Precip.
0%
0%
24.05
sun
sun
Day
54°F
W 17 mph
Precip.
0%
0%
Night
54°F
W 19 mph
Precip.
0%
0%
25.05
mon
mon
Day
55°F
W 18 mph
Precip.
0%
0%
Night
55°F
W 15 mph
Precip.
100%
100%
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 May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 48.2°F. The highest and lowest sea temperatures during the month were 51.8°F and 46.6°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 59.7°F. The highest and lowest sea temperatures during the month were 65.8°F and 54.1°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: 10:00
May 19, tuesday
1200
61°F
NE
16 mph
16 mph
1500
61°F
NE
17 mph
17 mph
1800
59°F
NE
22 mph
22 mph
2100
59°F
NE
19 mph
19 mph
May 20, wednesday
0000
59°F
NE
18 mph
18 mph
0300
59°F
NE
16 mph
16 mph
0600
57°F
NE
16 mph
16 mph
0900
59°F
NE
15 mph
15 mph
