Average sea water temperature in May:
+74.0°F
| Minimum sea water temperature in May: | 82.9°F |
| Maximum sea water temperature in May: | 66.9°F |
Daily sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 73.9°F. The highest and lowest sea temperatures during the month were 82.8°F and 68.5°F.
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| Charleston |
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Monthly sea water temperature in Charleston, °F
Which USA resorts have warmest sea in May?
| Place name | May 2026 | May 2025 |
|---|---|---|
| Key West | 84.3°F | 83.5°F |
| Key Largo | 84.0°F | 83.5°F |
| Miami | 83.3°F | 82.6°F |
| Cape Coral | 83.3°F | 83.4°F |
| Naples | 82.9°F | 83.5°F |
| Miami Beach | 82.7°F | 82.4°F |
| Tampa | 81.9°F | 82.7°F |
| West Palm Beach | 81.7°F | 81.1°F |
| Fort Lauderdale | 81.7°F | 81.1°F |
| Clearwater Beach | 81.5°F | 82.6°F |
| Sarasota | 81.5°F | 82.7°F |
| Siesta Key | 81.3°F | 82.5°F |
| Port St. Lucie | 80.8°F | 78.9°F |
| Cocoa Beach | 80.4°F | 79.4°F |
| Corpus Christi | 79.5°F | 80.9°F |
| Galveston | 78.4°F | 79.6°F |
| Orlando | 78.4°F | 77.2°F |
| Houston | 78.4°F | 79.5°F |
| Daytona Beach | 78.1°F | 76.0°F |
| New Orleans | 78.0°F | 79.5°F |
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 00:33
October 25, sunday
0300
61°F
SW
11 mph
11 mph
0600
59°F
SW
12 mph
12 mph
0900
61°F
SW
12 mph
12 mph
1200
72°F
SW
16 mph
16 mph
1500
73°F
SW
16 mph
16 mph
1800
68°F
SW
15 mph
15 mph
2100
64°F
SW
14 mph
14 mph
October 26, monday
0000
64°F
SW
12 mph
12 mph
