S
M
T
W
T
F
S
30
48°
39°
1
43°
34°
2
48°
34°
3
43°
36°
4
46°
34°
5
48°
32°
6
54°
32°
7
57°
45°
8
59°
46°
9
57°
39°
10
50°
39°
11
50°
45°
12
52°
39°
13
50°
37°
14
45°
34°
15
45°
32°
16
39°
30°
17
48°
36°
18
54°
36°
19
55°
37°
20
55°
41°
21
48°
32°
22
39°
32°
23
37°
36°
24
37°
34°
25
36°
30°
26
34°
28°
27
39°
28°
28
32°
27°
29
30°
21°
30
34°
23°
31
34°
18°
1
37°
18°
2
37°
23°
3
36°
23°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Basel
Basel'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 Basel. See also: January | February | March.
