S
M
T
W
T
F
S
27
45°
29°
28
51°
40°
29
56°
40°
30
59°
42°
31
60°
43°
1
62°
34°
2
63°
25°
3
51°
26°
4
46°
27°
5
47°
29°
6
46°
27°
7
44°
25°
8
43°
29°
9
45°
33°
10
50°
23°
11
51°
23°
12
42°
25°
13
48°
22°
14
43°
21°
15
41°
20°
16
40°
20°
17
42°
24°
18
45°
30°
19
45°
32°
20
46°
36°
21
47°
34°
22
59°
30°
23
50°
27°
24
46°
29°
25
48°
28°
26
49°
31°
27
51°
39°
28
57°
36°
29
Hist. Avg.
55°
35°
30
Hist. Avg.
55°
35°
31
Hist. Avg.
56°
35°
1
Hist. Avg.
56°
35°
2
Hist. Avg.
56°
35°
3
Hist. Avg.
56°
36°
4
Hist. Avg.
56°
36°
5
Hist. Avg.
56°
36°
6
Hist. Avg.
57°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in Charleston
Charleston's January 2027 forecast shows daily high temperatures ranging from 40° to 63°, with overnight lows between 20° and 43°. The average high for January is 49° with an average low of 30°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Charleston. See also: February | March | April.
