S
M
T
W
T
F
S
29
52°
39°
30
52°
37°
1
57°
33°
2
49°
37°
3
52°
24°
4
58°
23°
5
42°
23°
6
44°
25°
7
46°
27°
8
45°
23°
9
44°
20°
10
42°
20°
11
40°
21°
12
39°
21°
13
41°
22°
14
42°
22°
15
43°
23°
16
44°
26°
17
45°
33°
18
45°
31°
19
46°
29°
20
43°
27°
21
42°
28°
22
42°
25°
23
43°
31°
24
45°
22°
25
42°
21°
26
38°
22°
27
38°
20°
28
39°
23°
29
41°
22°
30
42°
24°
31
40°
20°
1
40°
19°
2
Hist. Avg.
43°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Bristol
Bristol's December 2026 forecast shows daily high temperatures ranging from 38° to 58°, with overnight lows between 19° and 39°. The average high for December is 44° 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 Bristol. See also: January | February | March.