Average sea water temperature in August:
+70.1°F
| Minimum sea water temperature in August: | 74.1°F |
| Maximum sea water temperature in August: | 66.9°F |
Daily 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.
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| Block Island |
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Monthly sea water temperature in Block Island, °F
Which USA resorts have warmest sea in August?
| Place name | August 2025 | August 2024 |
|---|---|---|
| Sanibel Island | 88.8°F | 87.3°F |
| Everglades | 88.8°F | 87.0°F |
| Islamorada | 88.8°F | 87.3°F |
| Key West | 88.8°F | 87.8°F |
| Cape Coral | 88.7°F | 86.8°F |
| Key Largo | 88.7°F | 87.3°F |
| Naples | 88.7°F | 87.0°F |
| Tampa | 88.6°F | 86.4°F |
| Sarasota | 88.6°F | 87.2°F |
| Siesta Key | 88.6°F | 87.3°F |
| Clearwater Beach | 88.5°F | 87.0°F |
| Miami | 88.1°F | 86.4°F |
| Miami Beach | 87.9°F | 86.5°F |
| Houston | 87.8°F | 88.0°F |
| New Orleans | 87.4°F | 88.1°F |
| Fort Lauderdale | 87.2°F | 85.8°F |
| Corpus Christi | 87.0°F | 87.9°F |
| Cocoa Beach | 86.8°F | 84.5°F |
| Bay Saint Louis | 86.6°F | 87.6°F |
| Pensacola | 86.5°F | 87.2°F |
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: 15:16
December 16, tuesday
1800
39°F
E
13 mph
13 mph
2100
37°F
NE
17 mph
17 mph
December 17, wednesday
0000
39°F
NE
24 mph
24 mph
0300
41°F
NE
26 mph
26 mph
0600
43°F
NE
27 mph
27 mph
0900
46°F
NE
27 mph
27 mph
1200
46°F
NE
30 mph
30 mph
1500
46°F
NE
29 mph
29 mph
