S
M
T
W
T
F
S
29
64°
45°
30
61°
46°
1
63°
38°
2
49°
31°
3
49°
31°
4
55°
38°
5
56°
38°
6
48°
33°
7
48°
31°
8
46°
29°
9
46°
30°
10
45°
30°
11
51°
31°
12
54°
35°
13
52°
32°
14
49°
33°
15
48°
36°
16
46°
38°
17
47°
33°
18
47°
29°
19
46°
27°
20
45°
27°
21
44°
28°
22
47°
32°
23
47°
31°
24
45°
27°
25
44°
27°
26
44°
28°
27
45°
27°
28
45°
27°
29
46°
31°
30
45°
27°
31
45°
27°
1
43°
24°
2
42°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Ulm
Ulm's December 2026 forecast shows daily high temperatures ranging from 42° to 64°, with overnight lows between 24° and 46°. The average high for December is 48° with an average low of 32°. 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 Ulm. See also: January | February | March.
