S
M
T
W
T
F
S
31
93°
79°
1
94°
81°
2
89°
78°
3
84°
73°
4
84°
74°
5
86°
75°
6
89°
77°
7
89°
75°
8
89°
77°
9
88°
76°
10
86°
77°
11
86°
75°
12
87°
78°
13
86°
77°
14
87°
76°
15
86°
75°
16
86°
77°
17
88°
78°
18
89°
78°
19
88°
77°
20
89°
78°
21
90°
78°
22
89°
77°
23
89°
78°
24
88°
78°
25
88°
78°
26
90°
77°
27
90°
77°
28
89°
78°
29
89°
78°
30
88°
79°
1
88°
78°
2
87°
77°
3
86°
78°
4
88°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Cayo Costa
Cayo Costa's June 2026 forecast shows daily high temperatures ranging from 84° to 90°, with overnight lows between 73° and 79°. The average high for June 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 June weather will actually feel in Cayo Costa. See also: July | August | September.