S
M
T
W
T
F
S
26
100°
73°
27
100°
74°
28
100°
74°
29
96°
73°
30
99°
73°
1
95°
71°
2
94°
72°
3
91°
71°
4
93°
71°
5
93°
73°
6
93°
73°
7
94°
74°
8
88°
73°
9
88°
73°
10
89°
72°
11
88°
73°
12
86°
73°
13
86°
72°
14
87°
72°
15
86°
71°
16
85°
72°
17
85°
71°
18
86°
72°
19
86°
72°
20
85°
71°
21
85°
72°
22
86°
73°
23
85°
72°
24
83°
73°
25
84°
73°
26
83°
72°
27
85°
73°
28
84°
72°
29
83°
72°
30
84°
71°
31
84°
72°
1
85°
72°
2
84°
71°
3
84°
72°
4
85°
72°
5
84°
71°
6
85°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Koh Yao
Koh Yao's May 2026 forecast shows daily high temperatures ranging from 83° to 100°, with overnight lows between 71° and 74°. The average high for May is 88° 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 May weather will actually feel in Koh Yao. See also: June | July | August.
