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The best time to visit Koh Lanta
January, February, March and December — daytime highs around 31°C. Every number on this page is measured, not guessed.
Koh Lanta month by month
| Month | Day | Night | Wet days | |
|---|---|---|---|---|
| January | 30°C | 24°C | 11 | Best |
| February | 31°C | 25°C | 7 | Best |
| March | 32°C | 25°C | 11 | Best |
| April | 31°C | 26°C | 21 | Shoulder |
| May | 30°C | 26°C | 27 | |
| June | 29°C | 26°C | 24 | |
| July | 29°C | 26°C | 23 | |
| August | 29°C | 25°C | 26 | |
| September | 28°C | 25°C | 25 | |
| October | 28°C | 25°C | 27 | |
| November | 28°C | 24°C | 26 | Shoulder |
| December | 29°C | 24°C | 16 | Best |
The short version
Warmest: March, around 32°C by day. Coolest: September, around 28°C by day and 25°C at night. Wettest: May with about 27 wet days. Driest: February with about 7.
If you want fewer people: April, November sit right beside the best months. The weather is close and the crowds are not.
Book it for those months
Prices climb as the good months fill up.
Common questions
When is the best time to visit Koh Lanta?
The best months are January, February, March and December, when daytime highs sit around 31°C.
What is the hottest month in Koh Lanta?
March, with daytime highs around 32°C.
What is the wettest month in Koh Lanta?
May, with about 27 wet days. The driest is February with about 7.
When is the cheapest time to visit Koh Lanta?
Prices follow the weather. The months either side of the best ones — April, November — are usually cheaper with similar conditions.
Temperatures and wet days are measured, not estimated: ERA5 reanalysis for 2021-2023, at Ko Lanta Yai, Krabi. Source: Open-Meteo.