Koh Samui flips with wet/dry patterns: samples can lift around Jul–Aug and year-end, softer about Oct–Nov. East vs west coast microclimates and ferry links matter as much as the month.
January
1 public holidays23.4
32.7
43.0
52.4
62.0
72.4
82.6
92.1
101.8
111.7
121.6
131.7
141.9
151.8
161.9
171.9
181.9
191.8
202.1
212.0
221.7
231.6
241.6
251.9
261.6
271.5
281.6
291.7
301.6
311.9
February
1 public holidays11.7
21.6
31.8
41.7
51.9
61.9
71.8
82.0
91.9
101.8
111.9
122.0
131.9
141.8
152.2
161.9
171.9
181.9
191.8
201.8
212.1
231.8
241.6
251.7
261.9
271.6
281.5
March
No public holidays this month11.7
21.9
31.5
41.6
51.5
61.6
71.5
81.8
91.5
101.5
111.5
122.0
131.4
141.4
151.5
161.7
171.5
181.5
191.6
201.5
211.5
221.4
231.6
241.5
251.6
261.7
271.6
281.6
291.6
301.6
311.6
April
2 public holidays11.5
22.0
31.6
41.5
51.4
71.3
81.5
91.6
101.6
111.4
121.7
161.6
171.6
181.5
191.5
201.6
211.9
221.6
231.7
241.6
251.4
261.4
271.4
281.4
291.6
301.6
May
3 public holidaysJune
1 public holidaysJuly
2 public holidaysAugust
1 public holidaysSeptember
No public holidays this month1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
October
2 public holidaysNovember
No public holidays this month · 1 FestivalDecember
3 public holidaysIndex ≈ 1.0 is each hotel’s sample off-peak baseline; shown when >1.2. Sampled reference, not live city-wide rates