Ko Lanta weather in January
January in Ko Lanta: hot, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in Ko Lanta · #63 of 897 destinations to visit in January · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ko Lanta in January
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Ko Lanta climate normals — January
| Daytime high | 29°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 76°F | |
| Rainfall | 43 mm / 1.7 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 10.2 h/day | |
| Daylight | 11.7 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ko Lanta in January — FAQ
- Is January a good time to visit Ko Lanta?
- January in Ko Lanta: hot, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Ko Lanta on SeasonMap's comfort score (90/100).
- What is the weather like in Ko Lanta in January?
- In January, Ko Lanta averages a daily high of 29.4°C and a low of 24.4°C, with about 42.9 mm of rain over roughly 5 rainy days.
- What is the air quality in Ko Lanta in January?
- Ko Lanta has a mean US Air Quality Index of about 44 in January.