S
M
T
W
T
F
S
29
49°
39°
30
52°
44°
1
54°
43°
2
52°
43°
3
54°
41°
4
49°
39°
5
52°
36°
6
50°
41°
7
53°
39°
8
45°
35°
9
43°
33°
10
42°
31°
11
40°
36°
12
41°
35°
13
45°
34°
14
41°
30°
15
42°
31°
16
41°
32°
17
42°
33°
18
41°
37°
19
49°
35°
20
47°
26°
21
41°
27°
22
38°
28°
23
36°
32°
24
40°
31°
25
45°
29°
26
47°
21°
27
38°
21°
28
34°
24°
29
37°
23°
30
36°
32°
31
41°
32°
1
50°
25°
2
46°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Atlantic Beach
Atlantic Beach's December 2026 forecast shows daily high temperatures ranging from 34° to 54°, with overnight lows between 21° and 44°. The average high for December is 44° with an average low of 33°. 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 Atlantic Beach. See also: January | February | March.