S
M
T
W
T
F
S
29
45°
34°
30
45°
33°
1
41°
32°
2
40°
32°
3
44°
33°
4
44°
33°
5
45°
30°
6
40°
28°
7
35°
29°
8
39°
22°
9
29°
22°
10
34°
26°
11
35°
26°
12
35°
27°
13
37°
27°
14
39°
26°
15
38°
28°
16
38°
27°
17
37°
27°
18
36°
26°
19
37°
25°
20
34°
25°
21
27°
21°
22
30°
20°
23
33°
13°
24
30°
6°
25
25°
5°
26
21°
11°
27
23°
13°
28
32°
8°
29
30°
15°
30
36°
8°
31
37°
7°
1
21°
7°
2
21°
4°
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 21° to 45°, with overnight lows between 4° and 34°. The average high for December is 35° with an average low of 22°. 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.
