S
M
T
W
T
F
S
29
46°
33°
30
50°
27°
1
47°
26°
2
47°
21°
3
48°
17°
4
33°
16°
5
31°
17°
6
32°
18°
7
34°
21°
8
36°
20°
9
35°
24°
10
34°
19°
11
31°
20°
12
31°
21°
13
32°
17°
14
30°
12°
15
27°
8°
16
26°
13°
17
26°
25°
18
38°
24°
19
40°
24°
20
42°
23°
21
40°
26°
22
40°
27°
23
42°
24°
24
41°
20°
25
36°
19°
26
34°
21°
27
36°
26°
28
39°
26°
29
40°
24°
30
42°
23°
31
40°
20°
1
38°
18°
2
30°
17°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Geneva
Geneva's December 2026 forecast shows daily high temperatures ranging from 26° to 50°, with overnight lows between 8° and 33°. The average high for December is 37° with an average low of 21°. 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 Geneva. See also: January | February | March.
