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 |
| Key Largo | 84.0°F | 83.5°F |
| Miami | 83.3°F | 82.6°F |
| Cape Coral | 83.3°F | 83.4°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 |
| Port St. Lucie | 80.8°F | 78.9°F |
| Cocoa Beach | 80.4°F | 79.4°F |
| Corpus Christi | 79.5°F | 80.9°F |
| South Padre Island | 79.1°F | 80.0°F |
| Galveston | 78.4°F | 79.6°F |
| Orlando | 78.4°F | 77.2°F |
| Houston | 78.4°F | 79.5°F |
| Daytona Beach | 78.1°F | 76.0°F |
Best time for vacation in Boston
Boston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boston
Local time: 22:33
October 05, monday
0000
55°F
SE
2 mph
2 mph
0300
54°F
SE
4 mph
4 mph
0600
52°F
NE
4 mph
4 mph
0900
57°F
NE
9 mph
9 mph
1200
68°F
E
15 mph
15 mph
1500
66°F
E
16 mph
16 mph
1800
61°F
E
11 mph
11 mph
2100
55°F
SE
14 mph
14 mph
