30.12
tue
tue
Day
43°F
SE 6 mph
Precip.
0%
0%
Night
39°F
E 5 mph
Precip.
0%
0%
31.12
wed
wed
Day
45°F
E 7 mph
Precip.
0%
0%
Night
45°F
E 13 mph
Precip.
0%
0%
01.01
thu
thu
Day
55°F
SE 9 mph
Precip.
0%
0%
Night
50°F
E 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
57°F
E 8 mph
Precip.
0%
0%
Night
59°F
NE 8 mph
Precip.
0%
0%
03.01
sat
sat
Day
59°F
NE 14 mph
Precip.
100%
100%
Night
55°F
SW 11 mph
Precip.
0%
0%
04.01
sun
sun
Day
54°F
SW 9 mph
Precip.
51%
51%
Night
52°F
SW 6 mph
Precip.
0%
0%
05.01
mon
mon
Day
57°F
S 3 mph
Precip.
0%
0%
Night
55°F
E 6 mph
Precip.
0%
0%
sea water
temperature
temperature
| Charleston |
monthly
weather
weather
| Charleston |
current
weather
weather
| Charleston |
14 days
forecast
forecast
| Charleston |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 55.8°F. The highest and lowest sea temperatures during the month were 61.2°F and 50.7°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 49.7°F. The highest and lowest sea temperatures during the month were 54.5°F and 44.4°F.
Air temperature in Charleston, °F
Precipitation total in Charleston, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Charleston
Charleston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Charleston
Local time: 00:35
December 30, tuesday
0300
43°F
SE
9 mph
9 mph
0600
41°F
SE
6 mph
6 mph
0900
37°F
SE
7 mph
7 mph
1200
43°F
SE
6 mph
6 mph
1500
50°F
SE
4 mph
4 mph
1800
50°F
SE
6 mph
6 mph
2100
43°F
E
5 mph
5 mph
December 31, wednesday
0000
39°F
E
5 mph
5 mph
