S
M
T
W
T
F
S
29
99°
75°
30
100°
78°
31
98°
77°
1
96°
77°
2
90°
82°
3
89°
80°
4
89°
79°
5
92°
82°
6
93°
82°
7
93°
82°
8
92°
82°
9
88°
83°
10
87°
84°
11
95°
80°
12
96°
81°
13
95°
81°
14
96°
80°
15
86°
84°
16
86°
83°
17
85°
83°
18
85°
84°
19
85°
83°
20
86°
84°
21
85°
84°
22
85°
83°
23
86°
84°
24
86°
83°
25
85°
83°
26
85°
84°
27
86°
84°
28
86°
83°
29
88°
83°
30
87°
84°
1
86°
84°
2
86°
82°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Ko Samui
Ko Samui's April 2026 forecast shows daily high temperatures ranging from 85° to 96°, with overnight lows between 79° and 84°. The average high for April is 88° with an average low of 83°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Ko Samui. See also: May | June | July.
