S
M
T
W
T
F
S
29
48°
35°
30
47°
38°
1
46°
36°
2
47°
35°
3
46°
38°
4
47°
36°
5
46°
34°
6
46°
34°
7
47°
35°
8
45°
35°
9
45°
34°
10
47°
32°
11
46°
35°
12
46°
34°
13
47°
35°
14
45°
36°
15
45°
34°
16
47°
33°
17
45°
32°
18
45°
34°
19
46°
34°
20
45°
33°
21
45°
33°
22
46°
34°
23
46°
34°
24
45°
37°
25
45°
37°
26
47°
33°
27
46°
37°
28
45°
40°
29
48°
41°
30
50°
38°
31
50°
39°
1
Hist. Avg.
46°
37°
2
Hist. Avg.
45°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Bath
Bath's December 2026 forecast shows daily high temperatures ranging from 45° to 50°, with overnight lows between 32° and 41°. The average high for December is 46° with an average low of 35°. 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 Bath. See also: January | February | March.