S
M
T
W
T
F
S
29
54°
39°
30
54°
39°
1
52°
32°
2
40°
30°
3
43°
31°
4
51°
34°
5
51°
36°
6
40°
27°
7
38°
23°
8
37°
23°
9
37°
25°
10
42°
29°
11
44°
28°
12
47°
29°
13
44°
27°
14
38°
24°
15
40°
25°
16
41°
29°
17
40°
27°
18
39°
21°
19
37°
20°
20
36°
18°
21
34°
20°
22
34°
25°
23
40°
24°
24
36°
25°
25
35°
17°
26
35°
17°
27
34°
18°
28
34°
17°
29
33°
22°
30
34°
20°
31
34°
17°
1
35°
12°
2
33°
12°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Brighton
Brighton's December 2026 forecast shows daily high temperatures ranging from 33° to 54°, with overnight lows between 12° and 39°. The average high for December is 40° 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 Brighton. See also: January | February | March.
