S
M
T
W
T
F
S
29
46°
32°
30
47°
29°
1
45°
28°
2
42°
28°
3
44°
27°
4
43°
29°
5
42°
33°
6
47°
38°
7
52°
41°
8
57°
36°
9
58°
33°
10
48°
30°
11
46°
32°
12
45°
30°
13
46°
32°
14
44°
27°
15
49°
25°
16
44°
25°
17
40°
24°
18
40°
24°
19
40°
25°
20
41°
35°
21
50°
30°
22
51°
28°
23
46°
34°
24
48°
34°
25
53°
32°
26
49°
25°
27
46°
28°
28
48°
23°
29
47°
25°
30
38°
17°
31
51°
18°
1
37°
21°
2
39°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Belmar
Belmar's December 2026 forecast shows daily high temperatures ranging from 37° to 58°, with overnight lows between 17° and 41°. The average high for December is 46° with an average low of 29°. 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 Belmar. See also: January | February | March.
