Koh Lanta · Month comparison
April vs March
March ranks #1 overall vs April at #6. Still excellent — dry season holds, crowds ease, prices begin to soften.
April
#6 of 12 months
Best match
Shoulder season — still mostly good but the pre-monsoon humidity and occasional showers signal change.
- ↑90mm is manageable — most days still predominantly sunny with afternoon shower bursts
- ↑Songkran Thai New Year (mid-April): water festival celebrated throughout Koh Lanta Old Town
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 | April | March |
|---|---|---|
| Weather score | 7 | 9 |
| Value score | 5 | 5 |
| Crowd score | 5 | 5 |
| Events score | 5 | 5 |
| Atmosphere | 7 | 8 |
| Avg high temp | 33°C | 33°C |
| Monthly rain | 90mm | 45mm |
| Daily sunshine | 8hrs | 9hrs |
April trade-offs
- ↓Humidity rising noticeably to 74% — muggy afternoons even on dry days
- ↓Monsoon onset within weeks — sea conditions beginning to deteriorate by month's end
- ↓Diving at Hin Daeng reduced from February–March peak conditions
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 →