Ko Lanta weather in April
April in Ko Lanta: hot, soaked, with very humid — fine if you can take 21 rainy days.
#4 of 12 months in Ko Lanta · #378 of 897 destinations to visit in April · comfort 82/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ko Lanta in April
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Ko Lanta climate normals — April
| Daytime high | 30°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Rainfall | 151 mm / 5.9 in | ⛈ soaked |
| Rainy days | 21 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 12.3 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 52 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ko Lanta in April — FAQ
- Is April a good time to visit Ko Lanta?
- April in Ko Lanta: hot, soaked, with very humid — fine if you can take 21 rainy days. It ranks #4 of 12 months for Ko Lanta on SeasonMap's comfort score (82/100).
- What is the weather like in Ko Lanta in April?
- In April, Ko Lanta averages a daily high of 30.3°C and a low of 26°C, with about 151.1 mm of rain over roughly 21.2 rainy days.
- What is the air quality in Ko Lanta in April?
- Ko Lanta has a mean US Air Quality Index of about 52 in April.