S
M
T
W
T
F
S
29
41°
28°
30
45°
30°
1
44°
29°
2
42°
30°
3
44°
28°
4
42°
27°
5
42°
27°
6
39°
28°
7
42°
26°
8
38°
25°
9
34°
26°
10
35°
25°
11
37°
25°
12
36°
24°
13
37°
18°
14
37°
14°
15
32°
14°
16
26°
15°
17
29°
13°
18
28°
21°
19
32°
20°
20
36°
19°
21
34°
15°
22
32°
15°
23
31°
7°
24
30°
15°
25
27°
15°
26
29°
8°
27
26°
8°
28
23°
9°
29
26°
9°
30
24°
13°
31
27°
19°
1
36°
17°
2
36°
11°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Mexico
Mexico's December 2026 forecast shows daily high temperatures ranging from 23° to 45°, with overnight lows between 7° and 30°. The average high for December is 34° with an average low of 19°. 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 Mexico. See also: January | February | March.
