Current sea water temperature:
+82.6°F
| Minimum sea water temperature in June: | 84.4°F |
| Maximum sea water temperature in June: | 70.2°F |
| Average sea water temperature in June: | 80.2°F |
| more information | |
14 days
forecast
forecast
| Charleston |
monthly
weather
weather
| Charleston |
Sea water temperature for the last 10 days:
| June 25 | 82.6°F | June 20 | 81.5°F |
| June 24 | 83.1°F | June 19 | 81.5°F |
| June 23 | 82.6°F | June 18 | 81.7°F |
| June 22 | 81.1°F | June 17 | 81.9°F |
| June 21 | 81.1°F | June 16 | 82.2°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.1°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.6°F.
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.
current
weather
weather
| Charleston |
weather in
June
June
| Charleston |
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 03:08
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
