Current sea water temperature:
+67.5°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: | 74.1°F |
| more information | |
14 days
forecast
forecast
| Charleston |
monthly
weather
weather
| Charleston |
Sea water temperature for the last 10 days:
| October 24 | 67.5°F | October 19 | 74.7°F |
| October 23 | 67.1°F | October 18 | 76.1°F |
| October 22 | 69.8°F | October 17 | 76.3°F |
| October 21 | 70.5°F | October 16 | 75.6°F |
| October 20 | 72.3°F | October 15 | 75.2°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: 23:50
October 25, sunday
0000
64°F
SW
11 mph
11 mph
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
