S
M
T
W
T
F
S
26
77°
61°
27
77°
59°
28
72°
61°
29
75°
57°
30
77°
61°
1
66°
57°
2
61°
54°
3
55°
50°
4
63°
52°
5
68°
54°
6
72°
59°
7
75°
59°
8
72°
59°
9
77°
61°
10
75°
63°
11
77°
61°
12
75°
64°
13
73°
63°
14
73°
61°
15
72°
61°
16
72°
61°
17
73°
64°
18
75°
63°
19
75°
61°
20
73°
59°
21
75°
64°
22
79°
66°
23
72°
61°
24
73°
61°
25
81°
66°
26
81°
66°
27
81°
66°
28
78°
66°
29
84°
66°
30
83°
67°
31
82°
65°
1
81°
65°
2
81°
62°
3
81°
62°
4
84°
65°
5
86°
69°
6
91°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Kos
Kos's May 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 62° and 73°. The average high for May is 83° with an average low of 66°. 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 Kos. See also: June | July | August.
