S
M
T
W
T
F
S
29
49°
33°
30
48°
33°
1
58°
29°
2
55°
34°
3
50°
28°
4
59°
24°
5
57°
25°
6
44°
24°
7
44°
26°
8
45°
23°
9
47°
21°
10
43°
21°
11
40°
22°
12
40°
23°
13
41°
23°
14
42°
24°
15
41°
25°
16
42°
27°
17
42°
25°
18
43°
34°
19
47°
32°
20
50°
27°
21
47°
24°
22
41°
23°
23
41°
22°
24
40°
25°
25
42°
22°
26
41°
24°
27
38°
25°
28
41°
24°
29
41°
22°
30
41°
23°
31
44°
16°
1
Hist. Avg.
43°
24°
2
Hist. Avg.
43°
24°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Seaside Heights
Seaside Heights's December 2026 forecast shows daily high temperatures ranging from 38° to 59°, with overnight lows between 16° and 34°. The average high for December is 45° with an average low of 25°. 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 Seaside Heights. See also: January | February | March.
