Average sea water temperature in May:
+52.7°F
| Minimum sea water temperature in May: | 61.0°F |
| Maximum sea water temperature in May: | 45.0°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 50.7°F. The highest and lowest sea temperatures during the month were 53.2°F and 47.3°F.
sea water
temperature
temperature
| Nantucket |
monthly
weather
weather
| Nantucket |
current
weather
weather
| Nantucket |
14 days
forecast
forecast
| Nantucket |
Monthly sea water temperature in Nantucket, °F
Which USA resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Everglades | 84.8°F | 84.5°F |
| Key Largo | 84.1°F | 83.5°F |
| Key West | 84.0°F | 83.5°F |
| Miami | 82.9°F | 82.6°F |
| Cape Coral | 82.6°F | 83.4°F |
| Hialeah | 82.4°F | 82.3°F |
| Marco Island | 82.1°F | 83.5°F |
| Miami Beach | 82.1°F | 82.4°F |
| Naples | 81.9°F | 83.5°F |
| Fort Lauderdale | 80.9°F | 81.1°F |
| West Palm Beach | 80.9°F | 81.1°F |
| Tampa | 80.4°F | 82.7°F |
| St. Petersburg | 80.3°F | 82.6°F |
| Sarasota | 80.0°F | 82.7°F |
| Siesta Key | 79.8°F | 82.5°F |
| Clearwater Beach | 79.8°F | 82.6°F |
| Cocoa Beach | 78.7°F | 79.4°F |
| Corpus Christi | 78.4°F | 80.9°F |
| Hilo | 78.1°F | 77.7°F |
| Honolulu | 78.0°F | 78.1°F |
Best time for vacation in Nantucket
Nantucket on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Nantucket
Local time: 20:11
May 16, saturday
2100
55°F
NE
24 mph
24 mph
May 17, sunday
0000
55°F
NE
29 mph
29 mph
0300
55°F
NE
26 mph
26 mph
0600
55°F
NE
22 mph
22 mph
0900
55°F
NE
17 mph
17 mph
1200
55°F
NE
15 mph
15 mph
1500
57°F
NE
18 mph
18 mph
1800
59°F
NE
19 mph
19 mph
