S
M
T
W
T
F
S
29
39°
26°
30
41°
26°
1
40°
29°
2
39°
23°
3
38°
21°
4
36°
25°
5
36°
29°
6
40°
35°
7
46°
31°
8
53°
27°
9
52°
26°
10
35°
24°
11
36°
23°
12
39°
22°
13
36°
25°
14
36°
23°
15
34°
21°
16
33°
22°
17
33°
19°
18
34°
25°
19
34°
29°
20
36°
32°
21
46°
24°
22
47°
24°
23
37°
31°
24
43°
30°
25
47°
28°
26
42°
26°
27
38°
19°
28
41°
17°
29
33°
19°
30
32°
10°
31
31°
11°
1
25°
13°
2
30°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mars
Mars's December 2026 forecast shows daily high temperatures ranging from 25° to 53°, with overnight lows between 10° and 35°. The average high for December is 38° with an average low of 24°. 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 Mars. See also: January | February | March.
