Current sea water temperature:
+78.6°F
| Minimum sea water temperature in October: | 82.4°F |
| Maximum sea water temperature in October: | 66.0°F |
| Average sea water temperature in October: | 74.0°F |
| more information | |
14 days
forecast
forecast
| Charleston |
monthly
weather
weather
| Charleston |
Sea water temperature for the last 10 days:
| October 4 | 78.6°F | September 29 | 76.1°F |
| October 3 | 78.4°F | September 28 | 77.5°F |
| October 2 | 78.1°F | September 27 | 78.4°F |
| October 1 | 77.4°F | September 26 | 80.1°F |
| September 30 | 76.8°F | September 25 | 82.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Charleston?
Based on the data about daily sea water temperature for the last three years the warmest sea in Charleston was noticed in August, July and September.
Monthly Sea Temperatures in Charleston, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 85.4°F. The highest and lowest sea temperatures during the month were 87.6°F and 83.7°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 85.8°F. The highest and lowest sea temperatures during the month were 87.1°F and 84.4°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 82.6°F. The highest and lowest sea temperatures during the month were 85.5°F and 76.1°F.
current
weather
weather
| Charleston |
weather in
October
October
| Charleston |
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 21:54
October 05, monday
0000
73°F
SE
2 mph
2 mph
0300
72°F
SW
4 mph
4 mph
0600
70°F
S
6 mph
6 mph
0900
70°F
SW
6 mph
6 mph
1200
70°F
SW
7 mph
7 mph
1500
70°F
SW
6 mph
6 mph
1800
70°F
SW
4 mph
4 mph
2100
70°F
SW
6 mph
6 mph
