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