Average sea water temperature in May:
+52.1°F
| Minimum sea water temperature in May: | 63.1°F |
| Maximum sea water temperature in May: | 43.7°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 53.0°F. The highest and lowest sea temperatures during the month were 58.3°F and 48.2°F.
Monthly sea water temperature in Boston, °F
Which USA resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Key West | 84.3°F | 83.5°F |
| Miami | 83.3°F | 82.6°F |
| Naples | 82.9°F | 83.5°F |
| Miami Beach | 82.7°F | 82.4°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 |
| Orlando | 78.4°F | 77.2°F |
| Houston | 78.4°F | 79.5°F |
| Daytona Beach | 78.1°F | 76.0°F |
| New Orleans | 78.0°F | 79.5°F |
| Honolulu | 78.0°F | 78.1°F |
| Hawaii | 77.9°F | 78.0°F |
| St. George Island | 77.8°F | 79.2°F |
| Maui | 77.0°F | 77.5°F |
| Panama City Beach | 76.8°F | 79.0°F |
Best time for vacation in Boston
Boston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boston
Local time: 13:22
August 05, wednesday
1500
90°F
NE
6 mph
6 mph
1800
86°F
E
6 mph
6 mph
2100
77°F
NE
8 mph
8 mph
August 06, thursday
0000
72°F
NE
6 mph
6 mph
0300
72°F
NE
6 mph
6 mph
0600
70°F
NE
5 mph
5 mph
0900
81°F
NE
6 mph
6 mph
1200
90°F
E
7 mph
7 mph
