21.12
sun
sun
Day
52°F
SE 4 mph
Precip.
0%
0%
Night
55°F
SW 11 mph
Precip.
0%
0%
22.12
mon
mon
Day
55°F
W 15 mph
Precip.
0%
0%
Night
52°F
SW 6 mph
Precip.
0%
0%
23.12
tue
tue
Day
57°F
NE 12 mph
Precip.
0%
0%
Night
59°F
E 7 mph
Precip.
0%
0%
24.12
wed
wed
Day
64°F
SW 6 mph
Precip.
0%
0%
Night
57°F
W 8 mph
Precip.
0%
0%
25.12
thu
thu
Day
63°F
NW 6 mph
Precip.
0%
0%
Night
59°F
NE 7 mph
Precip.
0%
0%
26.12
fri
fri
Day
66°F
NE 12 mph
Precip.
0%
0%
Night
64°F
NE 9 mph
Precip.
0%
0%
27.12
sat
sat
Day
63°F
SW 7 mph
Precip.
29%
29%
Night
55°F
SW 13 mph
Precip.
88%
88%
28.12
sun
sun
Day
54°F
SW 11 mph
Precip.
0%
0%
Night
50°F
SW 9 mph
Precip.
0%
0%
29.12
mon
mon
Day
55°F
SW 9 mph
Precip.
0%
0%
Night
54°F
W 6 mph
Precip.
0%
0%
30.12
tue
tue
Day
64°F
E 6 mph
Precip.
0%
0%
Night
59°F
NE 6 mph
Precip.
0%
0%
31.12
wed
wed
Day
64°F
E 5 mph
Precip.
0%
0%
Night
59°F
NE 3 mph
Precip.
0%
0%
01.01
thu
thu
Day
64°F
W 8 mph
Precip.
0%
0%
Night
59°F
SW 9 mph
Precip.
20%
20%
02.01
fri
fri
Day
61°F
N 1 mph
Precip.
74%
74%
Night
61°F
NW 6 mph
Precip.
100%
100%
03.01
sat
sat
Day
64°F
NE 4 mph
Precip.
100%
100%
Night
59°F
N 2 mph
Precip.
45%
45%
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 56.2°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: 03:51
December 21, sunday
0600
48°F
SE
6 mph
6 mph
0900
48°F
SE
6 mph
6 mph
1200
52°F
SE
4 mph
4 mph
1500
64°F
S
3 mph
3 mph
1800
63°F
SW
5 mph
5 mph
2100
59°F
SW
9 mph
9 mph
December 22, monday
0000
55°F
SW
11 mph
11 mph
0300
52°F
SW
12 mph
12 mph
