Koh Lanta · Month comparison
August vs March
March ranks #1 overall vs August at #10. Still excellent — dry season holds, crowds ease, prices begin to soften.
August
#10 of 12 months
Worth considering
245mm: the second wettest month — deep monsoon and the island at its quietest.
- ↑Prices at absolute minimum — budget accommodation available for almost nothing
- ↑Mangroves and national park interior at maximum lush and vivid green
March
#1 of 12 months
Best match
Still excellent — dry season holds, crowds ease, prices begin to soften.
- ↑45mm rainfall remains very dry — weather still overwhelmingly reliable and sunny
- ↑High season crowds thinning as European winter holidays end, making beaches more enjoyable
| Factor | August | March |
|---|---|---|
| Weather score | 3 | 9 |
| Value score | 8 | 5 |
| Crowd score | 9 | 5 |
| Events score | 3 | 5 |
| Atmosphere | 4 | 8 |
| Avg high temp | 30°C | 33°C |
| Monthly rain | 245mm | 45mm |
| Daily sunshine | 5hrs | 9hrs |
August trade-offs
- ↓245mm is well over the hard cap — beach and water activities simply not viable
- ↓Most of the island remains closed; the few open places have minimal staff and reduced menus
- ↓Humidity peaks at 84% — oppressively muggy on the rare dry moments
March trade-offs
- ↓Temperatures hitting 33°C by midday — less comfortable for active days than Feb
- ↓Some early monsoon showers possible in the last week as the Andaman begins to stir
- ↓Sea still calm but visibility at diving sites marginally less crystal than February
Scores compare months within Koh Lanta. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →