S
M
T
W
T
F
S
27
85°
68°
28
86°
68°
29
84°
73°
30
88°
74°
1
83°
74°
2
87°
79°
3
89°
78°
4
88°
81°
5
87°
80°
6
85°
79°
7
84°
75°
8
82°
76°
9
83°
75°
10
87°
74°
11
88°
75°
12
87°
74°
13
86°
72°
14
85°
73°
15
86°
71°
16
83°
73°
17
82°
72°
18
82°
72°
19
81°
72°
20
81°
68°
21
80°
66°
22
79°
65°
23
80°
70°
24
80°
70°
25
81°
71°
26
80°
69°
27
81°
70°
28
80°
69°
29
79°
70°
30
79°
66°
31
78°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Cayo Costa
Cayo Costa's October 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 64° and 81°. The average high for October is 83° with an average low of 72°. 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 Cayo Costa. See also: November | December | January.
