Average sea water temperature in April:
+66.5°F
| Minimum sea water temperature in April: | 73.8°F |
| Maximum sea water temperature in April: | 57.0°F |
Daily sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 67.6°F. The highest and lowest sea temperatures during the month were 70.5°F and 63.0°F.
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| Charleston |
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| Charleston |
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| Charleston |
14 days
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| Charleston |
Monthly sea water temperature in Charleston, °F
Which USA resorts have warmest sea in April?
| Place name | April 2026 | April 2025 |
|---|---|---|
| West Palm Beach | 78.2°F | 78.3°F |
| Key West | 78.2°F | 78.0°F |
| Fort Lauderdale | 78.1°F | 78.0°F |
| Miami Beach | 78.0°F | 78.3°F |
| Miami | 77.5°F | 77.9°F |
| Honolulu | 76.5°F | 77.4°F |
| Hawaii | 76.2°F | 77.3°F |
| Maui | 75.9°F | 76.6°F |
| Kauai | 75.9°F | 74.9°F |
| Naples | 75.8°F | 77.0°F |
| South Padre Island | 75.7°F | 74.5°F |
| Tampa | 75.3°F | 76.6°F |
| Cocoa Beach | 75.0°F | 75.1°F |
| Corpus Christi | 75.0°F | 74.7°F |
| Oahu | 74.9°F | 76.4°F |
| Clearwater Beach | 74.7°F | 75.6°F |
| Houston | 74.5°F | 73.7°F |
| Sarasota | 74.2°F | 76.0°F |
| Siesta Key | 73.8°F | 75.7°F |
| Bay Saint Louis | 73.8°F | 73.3°F |
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 16:56
September 14, monday
1800
90°F
NW
6 mph
6 mph
2100
81°F
NW
5 mph
5 mph
September 15, tuesday
0000
81°F
N
3 mph
3 mph
0300
79°F
SW
6 mph
6 mph
0600
79°F
W
11 mph
11 mph
0900
81°F
W
12 mph
12 mph
1200
82°F
SW
14 mph
14 mph
1500
84°F
W
14 mph
14 mph
