Average sea water temperature in July:
+70.1°F
| Minimum sea water temperature in July: | 75.6°F |
| Maximum sea water temperature in July: | 63.9°F |
Daily sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 68.7°F. The highest and lowest sea temperatures during the month were 72.9°F and 63.9°F.
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Monthly sea water temperature in Nantucket, °F
Which USA resorts have warmest sea in July?
| Place name | July 2025 | July 2024 |
|---|---|---|
| New Orleans | 87.4°F | 87.1°F |
| Clearwater Beach | 87.1°F | 88.3°F |
| St. Petersburg | 87.0°F | 88.0°F |
| Sarasota | 86.9°F | 87.9°F |
| Siesta Key | 86.9°F | 87.9°F |
| Tampa | 86.8°F | 87.4°F |
| Key West | 86.7°F | 87.6°F |
| Naples | 86.6°F | 87.2°F |
| Miami | 86.3°F | 86.9°F |
| Panama City Beach | 86.3°F | 86.8°F |
| Houston | 86.3°F | 86.4°F |
| Destin | 86.3°F | 86.6°F |
| Miami Beach | 86.0°F | 86.5°F |
| Tybee Island | 85.4°F | 85.8°F |
| Corpus Christi | 85.3°F | 86.6°F |
| Fort Lauderdale | 85.0°F | 86.0°F |
| Washington | 84.8°F | 83.9°F |
| Charleston (SC) | 84.7°F | 85.2°F |
| West Palm Beach | 84.6°F | 85.7°F |
| Isle of Palms | 84.3°F | 85.0°F |
Best time for vacation in Nantucket
Nantucket on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Nantucket
Local time: 04:13
June 26, friday
0600
63°F
NE
12 mph
12 mph
0900
64°F
NE
8 mph
8 mph
1200
68°F
N
12 mph
12 mph
1500
68°F
N
16 mph
16 mph
1800
68°F
NE
17 mph
17 mph
2100
68°F
NE
16 mph
16 mph
June 27, saturday
0000
70°F
NE
19 mph
19 mph
0300
70°F
NE
19 mph
19 mph
