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 68.5°F. The highest and lowest sea temperatures during the month were 70.3°F and 66.4°F.
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| Charlestown |
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| Charlestown |
current
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| Charlestown |
14 days
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| Charlestown |
Monthly sea water temperature in Charlestown, °F
Which USA resorts have warmest sea in July?
| Place name | July 2026 | July 2025 |
|---|---|---|
| Key West | 88.5°F | 86.7°F |
| Clearwater Beach | 87.9°F | 87.1°F |
| Naples | 87.7°F | 86.6°F |
| Tampa | 87.6°F | 86.8°F |
| Sarasota | 87.6°F | 86.9°F |
| New Orleans | 87.5°F | 87.4°F |
| Miami | 87.4°F | 86.3°F |
| Miami Beach | 87.0°F | 86.0°F |
| Houston | 86.7°F | 86.3°F |
| Hilton Head Island | 86.3°F | 85.7°F |
| Edisto Beach | 86.3°F | 85.3°F |
| St. George Island | 86.3°F | 86.4°F |
| Tybee Island | 86.3°F | 85.4°F |
| West Palm Beach | 86.1°F | 84.6°F |
| Panama City Beach | 86.0°F | 86.3°F |
| Santa Rosa Beach | 85.9°F | 86.2°F |
| Pensacola Beach | 85.8°F | 86.7°F |
| Destin | 85.8°F | 86.3°F |
| Charleston (SC) | 85.8°F | 84.7°F |
| Fort Walton Beach | 85.5°F | 86.1°F |
Best time for vacation in Charlestown
Charlestown on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charlestown
Local time: 17:55
August 14, friday
1800
79°F
E
7 mph
7 mph
2100
73°F
S
6 mph
6 mph
August 15, saturday
0000
66°F
SW
11 mph
11 mph
0300
66°F
S
9 mph
9 mph
0600
63°F
S
11 mph
11 mph
0900
68°F
S
14 mph
14 mph
1200
73°F
S
7 mph
7 mph
1500
75°F
N
7 mph
7 mph
