Average sea water temperature in May:
+52.1°F
| Minimum sea water temperature in May: | 58.8°F |
| Maximum sea water temperature in May: | 46.2°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 51.6°F. The highest and lowest sea temperatures during the month were 55.9°F and 46.2°F.
Monthly sea water temperature in Groton, °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 |
| 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 |
| Orlando | 78.4°F | 77.2°F |
| Houston | 78.4°F | 79.5°F |
| Daytona Beach | 78.1°F | 76.0°F |
| Hilo | 78.1°F | 77.7°F |
| New Orleans | 78.0°F | 79.5°F |
| Honolulu | 78.0°F | 78.1°F |
| Hawaii | 77.9°F | 78.0°F |
Best time for vacation in Groton
Groton on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Groton
Local time: 20:21
June 26, friday
2100
70°F
N
6 mph
6 mph
June 27, saturday
0000
68°F
E
1 mph
1 mph
0300
68°F
S
2 mph
2 mph
0600
66°F
S
4 mph
4 mph
0900
70°F
S
5 mph
5 mph
1200
75°F
N
6 mph
6 mph
1500
70°F
NE
7 mph
7 mph
1800
70°F
NE
7 mph
7 mph
