S
M
T
W
T
F
S
26
89°
76°
27
88°
74°
28
85°
78°
29
85°
77°
30
86°
77°
1
88°
78°
2
88°
78°
3
87°
77°
4
86°
78°
5
84°
78°
6
85°
77°
7
86°
78°
8
87°
78°
9
86°
77°
10
88°
78°
11
87°
78°
12
88°
79°
13
86°
78°
14
85°
79°
15
88°
79°
16
87°
78°
17
87°
80°
18
88°
80°
19
90°
79°
20
90°
80°
21
89°
80°
22
89°
79°
23
90°
80°
24
90°
80°
25
89°
79°
26
89°
80°
27
90°
79°
28
88°
80°
29
86°
77°
30
87°
76°
31
86°
76°
1
86°
76°
2
87°
77°
3
86°
76°
4
86°
77°
5
87°
78°
6
89°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cancún
Cancún's May 2026 forecast shows daily high temperatures ranging from 84° to 90°, with overnight lows between 74° and 80°. The average high for May is 87° with an average low of 78°. 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 Cancún. See also: June | July | August.
