S
M
T
W
T
F
S
26
88°
79°
27
86°
79°
28
88°
79°
29
88°
77°
30
88°
77°
1
88°
81°
2
90°
82°
3
90°
81°
4
88°
77°
5
88°
77°
6
90°
81°
7
88°
81°
8
88°
79°
9
88°
79°
10
90°
81°
11
88°
79°
12
90°
77°
13
91°
73°
14
88°
75°
15
88°
72°
16
88°
79°
17
90°
81°
18
90°
81°
19
90°
77°
20
88°
77°
21
90°
77°
22
91°
79°
23
91°
81°
24
90°
82°
25
91°
77°
26
87°
79°
27
88°
80°
28
88°
79°
29
85°
75°
30
85°
76°
31
90°
77°
1
89°
75°
2
89°
77°
3
88°
76°
4
88°
77°
5
88°
77°
6
89°
76°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Ciudad de Cancun
Ciudad de Cancun's May 2026 forecast shows daily high temperatures ranging from 85° to 91°, with overnight lows between 75° and 80°. The average high for May is 88° 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 Ciudad de Cancun. See also: June | July | August.