S
M
T
W
T
F
S
27
91°
75°
28
91°
79°
29
84°
75°
30
90°
79°
1
84°
79°
2
88°
77°
3
88°
75°
4
90°
81°
5
90°
79°
6
90°
81°
7
91°
79°
8
89°
76°
9
90°
75°
10
91°
78°
11
88°
78°
12
90°
76°
13
90°
75°
14
89°
76°
15
90°
77°
16
89°
75°
17
90°
74°
18
88°
73°
19
88°
73°
20
88°
72°
21
85°
78°
22
83°
78°
23
82°
79°
24
82°
79°
25
83°
78°
26
83°
79°
27
85°
79°
28
84°
78°
29
82°
78°
30
83°
78°
31
84°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Cancún
Cancún's October 2026 forecast shows daily high temperatures ranging from 82° to 91°, with overnight lows between 72° and 79°. The average high for October is 87° 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 October weather will actually feel in Cancún. See also: November | December | January.