Average sea water temperature in May:
+51.1°F
| Minimum sea water temperature in May: | 57.7°F |
| Maximum sea water temperature in May: | 45.5°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 50.3°F. The highest and lowest sea temperatures during the month were 55.6°F and 46.6°F.
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| Block Island |
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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 May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Everglades | 84.6°F | 84.5°F |
| Key West | 84.3°F | 83.5°F |
| Key Largo | 84.0°F | 83.5°F |
| Miami | 83.3°F | 82.6°F |
| Cape Coral | 83.3°F | 83.4°F |
| Marco Island | 83.2°F | 83.5°F |
| Hialeah | 82.9°F | 82.3°F |
| Naples | 82.9°F | 83.5°F |
| Miami Beach | 82.7°F | 82.4°F |
| St. Petersburg | 82.0°F | 82.6°F |
| Tampa | 81.9°F | 82.7°F |
| West Palm Beach | 81.7°F | 81.1°F |
| Fort Lauderdale | 81.7°F | 81.1°F |
| Clearwater Beach | 81.5°F | 82.6°F |
| Sarasota | 81.5°F | 82.7°F |
| Siesta Key | 81.3°F | 82.5°F |
| Cocoa Beach | 80.4°F | 79.4°F |
| Corpus Christi | 79.5°F | 80.9°F |
| Galveston | 78.4°F | 79.6°F |
| Orlando | 78.4°F | 77.2°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: 16:18
June 08, monday
1800
66°F
N
12 mph
12 mph
2100
59°F
NE
15 mph
15 mph
June 09, tuesday
0000
59°F
NE
14 mph
14 mph
0300
61°F
E
16 mph
16 mph
0600
61°F
E
16 mph
16 mph
0900
63°F
E
17 mph
17 mph
1200
63°F
NE
17 mph
17 mph
1500
63°F
NE
22 mph
22 mph
