S
M
T
W
T
F
S
29
62°
47°
30
60°
51°
1
61°
54°
2
63°
52°
3
71°
45°
4
69°
44°
5
58°
45°
6
58°
51°
7
62°
52°
8
65°
52°
9
58°
42°
10
55°
42°
11
Hist. Avg.
62°
48°
12
Hist. Avg.
61°
47°
13
Hist. Avg.
61°
47°
14
Hist. Avg.
61°
47°
15
Hist. Avg.
61°
47°
16
Hist. Avg.
61°
47°
17
Hist. Avg.
61°
47°
18
Hist. Avg.
60°
46°
19
Hist. Avg.
60°
46°
20
Hist. Avg.
60°
46°
21
Hist. Avg.
60°
46°
22
Hist. Avg.
60°
46°
23
Hist. Avg.
60°
46°
24
Hist. Avg.
60°
46°
25
Hist. Avg.
60°
45°
26
Hist. Avg.
59°
45°
27
Hist. Avg.
59°
45°
28
Hist. Avg.
59°
45°
29
Hist. Avg.
59°
45°
30
Hist. Avg.
59°
45°
31
Hist. Avg.
59°
44°
1
Hist. Avg.
59°
44°
2
Hist. Avg.
59°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in James Island
James Island's December 2026 forecast shows daily high temperatures ranging from 55° to 71°, with overnight lows between 42° and 54°. The average high for December is 62° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in James Island. See also: January | February | March.
