S
M
T
W
T
F
S
29
44°
34°
30
48°
32°
1
48°
32°
2
47°
33°
3
48°
31°
4
47°
30°
5
45°
31°
6
47°
30°
7
44°
32°
8
45°
36°
9
44°
36°
10
46°
37°
11
48°
41°
12
49°
40°
13
Hist. Avg.
42°
34°
14
Hist. Avg.
42°
34°
15
Hist. Avg.
42°
34°
16
Hist. Avg.
42°
34°
17
Hist. Avg.
42°
34°
18
Hist. Avg.
42°
34°
19
Hist. Avg.
42°
34°
20
Hist. Avg.
42°
34°
21
Hist. Avg.
41°
34°
22
Hist. Avg.
41°
34°
23
Hist. Avg.
41°
34°
24
Hist. Avg.
41°
33°
25
Hist. Avg.
41°
33°
26
Hist. Avg.
41°
33°
27
Hist. Avg.
41°
33°
28
Hist. Avg.
41°
33°
29
Hist. Avg.
41°
33°
30
Hist. Avg.
41°
33°
31
Hist. Avg.
41°
33°
1
Hist. Avg.
40°
32°
2
Hist. Avg.
40°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
December Weather in Mannheim
Mannheim's December 2026 forecast shows daily high temperatures ranging from 44° to 49°, with overnight lows between 30° and 41°. The average high for December is 46° with an average low of 34°. 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 Mannheim. See also: January | February | March.
