Average sea water temperature in September:
+81.0°F
| Minimum sea water temperature in September: | 86.7°F |
| Maximum sea water temperature in September: | 75.4°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 78.8°F. The highest and lowest sea temperatures during the month were 81.5°F and 75.4°F.
sea water
temperature
temperature
| Charleston |
monthly
weather
weather
| Charleston |
current
weather
weather
| Charleston |
14 days
forecast
forecast
| Charleston |
Monthly sea water temperature in Charleston, °F
Which USA resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Key West | 86.9°F | 87.4°F |
| Fort Lauderdale | 86.4°F | 86.4°F |
| West Palm Beach | 86.2°F | 86.4°F |
| Miami Beach | 86.1°F | 86.3°F |
| Naples | 86.1°F | 87.2°F |
| Corpus Christi | 85.8°F | 84.7°F |
| Miami | 85.8°F | 86.0°F |
| Houston | 84.9°F | 83.4°F |
| Siesta Key | 84.9°F | 86.8°F |
| Sarasota | 84.8°F | 86.7°F |
| Cocoa Beach | 84.6°F | 85.2°F |
| Tampa | 84.3°F | 86.0°F |
| New Orleans | 84.3°F | 82.9°F |
| St. Petersburg | 84.1°F | 86.1°F |
| Clearwater Beach | 84.0°F | 86.2°F |
| Panama City Beach | 83.4°F | 84.8°F |
| Destin | 83.1°F | 84.5°F |
| Orlando | 82.8°F | 83.6°F |
| Daytona Beach | 82.7°F | 83.2°F |
| St. Augustine | 81.8°F | 82.7°F |
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 04:19
June 26, friday
0600
77°F
N
3 mph
3 mph
0900
81°F
N
6 mph
6 mph
1200
88°F
N
11 mph
11 mph
1500
88°F
N
14 mph
14 mph
1800
84°F
N
14 mph
14 mph
2100
82°F
N
12 mph
12 mph
June 27, saturday
0000
81°F
NE
12 mph
12 mph
0300
81°F
NE
9 mph
9 mph
