S
M
T
W
T
F
S
29
43°
29°
30
41°
27°
1
41°
31°
2
44°
31°
3
46°
15°
4
45°
14°
5
31°
15°
6
28°
17°
7
30°
16°
8
31°
13°
9
31°
12°
10
27°
13°
11
26°
15°
12
31°
14°
13
29°
15°
14
29°
20°
15
30°
21°
16
33°
21°
17
34°
20°
18
36°
27°
19
37°
27°
20
37°
26°
21
36°
25°
22
36°
23°
23
34°
24°
24
34°
22°
25
35°
23°
26
34°
22°
27
34°
15°
28
33°
13°
29
30°
21°
30
30°
14°
31
35°
19°
1
32°
18°
2
Hist. Avg.
32°
18°
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 26° to 46°, with overnight lows between 12° and 31°. The average high for December is 34° with an average low of 20°. 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.
