S
M
T
W
T
F
S
26
86°
68°
27
91°
69°
28
93°
68°
29
89°
67°
30
87°
71°
1
88°
70°
2
91°
71°
3
75°
68°
4
87°
68°
5
90°
68°
6
90°
70°
7
91°
72°
8
93°
72°
9
93°
73°
10
94°
76°
11
93°
76°
12
92°
76°
13
90°
76°
14
92°
75°
15
93°
72°
16
93°
70°
17
96°
71°
18
91°
74°
19
91°
74°
20
93°
73°
21
94°
72°
22
94°
73°
23
93°
75°
24
92°
75°
25
93°
76°
26
95°
75°
27
92°
76°
28
89°
75°
29
92°
75°
30
88°
78°
31
93°
79°
1
94°
81°
2
96°
78°
3
83°
74°
4
83°
71°
5
88°
73°
6
93°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cayo Costa
Cayo Costa's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Cayo Costa. See also: June | July | August.
