Current sea water temperature:
+64.4°F
| Minimum sea water temperature in June: | 66.4°F |
| Maximum sea water temperature in June: | 53.6°F |
| Average sea water temperature in June: | 60.1°F |
| more information | |
14 days
forecast
forecast
| Block Island |
monthly
weather
weather
| Block Island |
Sea water temperature for the last 10 days:
| June 29 | 64.4°F | June 24 | 60.8°F |
| June 28 | 63.7°F | June 23 | 60.4°F |
| June 27 | 62.8°F | June 22 | 60.3°F |
| June 26 | 63.5°F | June 21 | 59.7°F |
| June 25 | 61.9°F | June 20 | 59.7°F |
Monthly sea water temperature, °F
When is the warmest sea in Block Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Block Island was noticed in August, July and September.
Monthly Sea Temperatures in Block Island, °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.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.5°F. The highest and lowest sea temperatures during the month were 71.6°F and 65.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 68.0°F. The highest and lowest sea temperatures during the month were 68.9°F and 66.6°F.
current
weather
weather
| Block Island |
weather in
July
July
| Block Island |
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: 18:29
June 29, monday
2100
63°F
NE
8 mph
8 mph
June 30, tuesday
0000
61°F
NE
7 mph
7 mph
0300
66°F
NE
7 mph
7 mph
0600
66°F
NE
7 mph
7 mph
0900
68°F
NE
9 mph
9 mph
1200
68°F
NE
14 mph
14 mph
1500
68°F
NE
17 mph
17 mph
1800
70°F
NE
16 mph
16 mph
