Average sea water temperature in July:
+69.4°F
| Minimum sea water temperature in July: | 73.9°F |
| Maximum sea water temperature in July: | 63.9°F |
Daily sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 68.3°F. The highest and lowest sea temperatures during the month were 70.3°F and 66.4°F.
sea water
temperature
temperature
| Charlestown |
monthly
weather
weather
| Charlestown |
current
weather
weather
| Charlestown |
14 days
forecast
forecast
| Charlestown |
Monthly sea water temperature in Charlestown, °F
Which USA resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Key West | 88.8°F | 86.7°F |
| Clearwater Beach | 88.6°F | 87.1°F |
| St. Petersburg | 88.4°F | 87.0°F |
| Tampa | 88.2°F | 86.8°F |
| Sarasota | 88.1°F | 86.9°F |
| Siesta Key | 88.1°F | 86.9°F |
| Naples | 88.0°F | 86.6°F |
| Miami | 87.6°F | 86.3°F |
| New Orleans | 87.2°F | 87.4°F |
| Miami Beach | 87.1°F | 86.0°F |
| Fort Lauderdale | 86.6°F | 85.0°F |
| Houston | 86.5°F | 86.3°F |
| Pensacola | 86.5°F | 86.9°F |
| Panama City Beach | 86.2°F | 86.3°F |
| Destin | 86.2°F | 86.3°F |
| West Palm Beach | 86.1°F | 84.6°F |
| Charleston (SC) | 85.6°F | 84.7°F |
| Corpus Christi | 85.4°F | 85.3°F |
| Isle of Palms | 85.3°F | 84.3°F |
| Jacksonville | 85.0°F | 80.4°F |
Best time for vacation in Charlestown
Charlestown on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charlestown
Local time: 12:44
July 21, tuesday
1500
70°F
NW
19 mph
19 mph
1800
70°F
N
18 mph
18 mph
2100
70°F
NE
39 mph
39 mph
July 22, wednesday
0000
70°F
NE
16 mph
16 mph
0300
72°F
NE
21 mph
21 mph
0600
72°F
NE
19 mph
19 mph
0900
72°F
NE
16 mph
16 mph
1200
73°F
NE
21 mph
21 mph
