Koh Samui · Month comparison

April vs January

April ranks #1 overall vs January at #5. Songkran brings Thai New Year festivities — warm, slightly wetter, but culturally unmissable.

Koh Samui April — traditional wooden boats resting on beach at sunset

April

#1 of 12 months

Best match

Songkran brings Thai New Year festivities — warm, slightly wetter, but culturally unmissable.

  • ↑Songkran water festival (13–15 April) transforms Na Thon and Chaweng into celebrations of Thai New Year
  • ↑Good value accommodation: 30–35% below peak-season rates with weather still mostly excellent
Koh Samui January — tropical beach with lounge chairs and umbrellas in peak dry season

January

#5 of 12 months

Strong option

Peak dry season: reliably sunny, warm, and the most visited month on the island.

  • ↑Consistent sunshine with only 58mm of rain spread across the month — outdoor days rarely disrupted
  • ↑Sea conditions ideal for snorkelling at Ang Thong Marine Park and Koh Tao day trips
FactorAprilJanuary
Weather score
7
8
Value score
6
4
Crowd score
6
3
Events score
7
5
Atmosphere
8
7
Avg high temp32.8°C29.8°C
Monthly rain83mm58mm
Daily sunshine7.5hrs7.8hrs

April trade-offs

  • ↓Songkran week: hotel prices spike temporarily and transport books up fast
  • ↓83mm of rain is manageable but occasional heavy afternoon showers begin appearing
  • ↓Peak heat of 32.8°C: demanding for any strenuous outdoor activity between 11am and 3pm

January trade-offs

  • ↓Peak prices: resort rates 40–60% above low-season levels, with beachfront villas selling out months ahead
  • ↓Chaweng Beach strip at maximum tourist density — sunbed space genuinely competitive
  • ↓Flight connections from Bangkok and Singapore fill quickly; book transport well in advance
See all 12 months for Koh Samui →April in detail →January in detail →
Scores compare months within Koh Samui. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →