S
M
T
W
T
F
S
29
43°
31°
30
41°
29°
1
42°
34°
2
43°
30°
3
45°
18°
4
43°
17°
5
30°
18°
6
28°
19°
7
30°
18°
8
31°
16°
9
30°
14°
10
27°
16°
11
27°
17°
12
31°
16°
13
28°
18°
14
29°
22°
15
31°
23°
16
32°
22°
17
34°
21°
18
35°
29°
19
37°
29°
20
36°
28°
21
36°
27°
22
35°
26°
23
36°
24°
24
35°
23°
25
34°
25°
26
33°
24°
27
34°
17°
28
33°
15°
29
30°
22°
30
29°
15°
31
26°
13°
1
Hist. Avg.
31°
18°
2
Hist. Avg.
31°
18°
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 26° to 45°, with overnight lows between 13° and 34°. The average high for December is 34° 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 Bath. See also: January | February | March.