20.12
sat
sat
Day
52°F
W 7 mph
Precip.
0%
0%
Night
52°F
S 1 mph
Precip.
0%
0%
21.12
sun
sun
Day
52°F
SE 6 mph
Precip.
0%
0%
Night
54°F
SW 12 mph
Precip.
0%
0%
22.12
mon
mon
Day
54°F
SW 15 mph
Precip.
0%
0%
Night
54°F
SW 8 mph
Precip.
0%
0%
23.12
tue
tue
Day
66°F
N 9 mph
Precip.
0%
0%
Night
59°F
NE 6 mph
Precip.
0%
0%
24.12
wed
wed
Day
64°F
SE 4 mph
Precip.
0%
0%
Night
59°F
W 6 mph
Precip.
0%
0%
25.12
thu
thu
Day
66°F
NE 4 mph
Precip.
0%
0%
Night
59°F
NE 6 mph
Precip.
0%
0%
26.12
fri
fri
Day
66°F
NE 9 mph
Precip.
0%
0%
Night
61°F
NE 9 mph
Precip.
0%
0%
27.12
sat
sat
Day
68°F
E 9 mph
Precip.
0%
0%
Night
63°F
E 6 mph
Precip.
0%
0%
28.12
sun
sun
Day
68°F
NE 4 mph
Precip.
0%
0%
Night
61°F
W 7 mph
Precip.
0%
0%
29.12
mon
mon
Day
63°F
W 9 mph
Precip.
0%
0%
Night
59°F
NW 4 mph
Precip.
0%
0%
30.12
tue
tue
Day
64°F
NE 9 mph
Precip.
0%
0%
Night
61°F
NE 9 mph
Precip.
0%
0%
31.12
wed
wed
Day
66°F
NE 14 mph
Precip.
30%
30%
Night
61°F
E 11 mph
Precip.
100%
100%
01.01
thu
thu
Day
55°F
SE 11 mph
Precip.
0%
0%
Night
52°F
NE 4 mph
Precip.
0%
0%
02.01
fri
fri
Day
54°F
W 6 mph
Precip.
0%
0%
Night
52°F
N 5 mph
Precip.
0%
0%
sea water
temperature
temperature
| Charleston |
monthly
weather
weather
| Charleston |
current
weather
weather
| Charleston |
7 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 56.4°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: 05:48
December 20, saturday
0600
46°F
SW
6 mph
6 mph
0900
46°F
SW
4 mph
4 mph
1200
52°F
W
7 mph
7 mph
1500
57°F
W
7 mph
7 mph
1800
55°F
W
7 mph
7 mph
2100
54°F
W
5 mph
5 mph
December 21, sunday
0000
52°F
S
1 mph
1 mph
0300
50°F
E
5 mph
5 mph
