S
M
T
W
T
F
S
26
83°
76°
27
83°
77°
28
84°
77°
29
84°
76°
30
83°
77°
1
83°
77°
2
84°
76°
3
84°
77°
4
85°
78°
5
84°
78°
6
84°
77°
7
85°
78°
8
84°
78°
9
84°
77°
10
85°
78°
11
87°
78°
12
86°
79°
13
87°
78°
14
86°
77°
15
87°
78°
16
88°
78°
17
88°
76°
18
88°
78°
19
88°
77°
20
88°
78°
21
89°
77°
22
86°
77°
23
86°
76°
24
88°
75°
25
87°
75°
26
89°
77°
27
88°
76°
28
89°
77°
29
86°
78°
30
87°
77°
31
87°
78°
1
88°
77°
2
87°
76°
3
87°
78°
4
88°
78°
5
88°
79°
6
87°
77°
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 83° to 89°, with overnight lows between 75° and 79°. The average high for May is 86° with an average low of 77°. 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.
