S
M
T
W
T
F
S
30
38°
23°
1
43°
30°
2
45°
27°
3
42°
26°
4
36°
25°
5
39°
32°
6
43°
30°
7
40°
29°
8
49°
37°
9
49°
31°
10
48°
27°
11
73°
27°
12
46°
26°
13
46°
24°
14
44°
23°
15
47°
22°
16
59°
33°
17
46°
35°
18
51°
33°
19
50°
31°
20
49°
28°
21
49°
26°
22
44°
31°
23
34°
28°
24
35°
29°
25
39°
23°
26
41°
21°
27
43°
18°
28
40°
20°
29
42°
17°
30
31°
20°
31
33°
16°
1
34°
12°
2
32°
15°
3
35°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Grainau
Grainau's December 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for December is ° with an average low of °. 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 Grainau. See also: January | February | March.
