S
M
T
W
T
F
S
26
78°
55°
27
77°
62°
28
60°
49°
29
61°
44°
30
65°
39°
1
63°
38°
2
62°
40°
3
79°
40°
4
81°
55°
5
69°
44°
6
61°
43°
7
67°
40°
8
67°
48°
9
80°
51°
10
67°
47°
11
77°
46°
12
80°
52°
13
75°
54°
14
76°
47°
15
79°
61°
16
80°
64°
17
84°
66°
18
76°
63°
19
71°
50°
20
64°
50°
21
64°
54°
22
66°
56°
23
74°
57°
24
78°
58°
25
73°
59°
26
77°
60°
27
78°
59°
28
78°
59°
29
77°
60°
30
79°
59°
31
79°
60°
1
85°
57°
2
83°
62°
3
76°
59°
4
76°
57°
5
82°
63°
6
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mexico
Mexico's May 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 50° and 64°. The average high for May is 76° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Mexico. See also: June | July | August.