S
M
T
W
T
F
S
29
60°
50°
30
59°
43°
1
57°
44°
2
58°
50°
3
60°
52°
4
63°
52°
5
68°
53°
6
66°
53°
7
60°
43°
8
60°
51°
9
65°
41°
10
73°
39°
11
60°
37°
12
55°
38°
13
57°
35°
14
55°
35°
15
52°
36°
16
54°
36°
17
55°
39°
18
56°
41°
19
56°
43°
20
60°
37°
21
59°
37°
22
54°
40°
23
56°
48°
24
65°
39°
25
70°
35°
26
56°
36°
27
55°
42°
28
58°
45°
29
67°
38°
30
66°
42°
31
56°
36°
1
61°
37°
2
59°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Hilton Head Island
Hilton Head Island's December 2026 forecast shows daily high temperatures ranging from 52° to 73°, with overnight lows between 35° and 53°. The average high for December is 60° with an average low of 42°. 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 Hilton Head Island. See also: January | February | March.
