When planning a visit to Koh Lanta in Thailand, it helps to know that temperatures typically range from 29°C (84°F) in October up to 31°C (88°F) during the peak of March. Our detailed climate overview is based on data from Ko Lanta, the region's most well-known city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Koh Lanta, especially in Ko Lanta, temperatures remain consistently high year-round, with average maximums never dropping below 29°C (84°F).
February, March and April are generally the hottest months of the year.
When it comes to rainfall, Koh Lanta sees significant variations throughout the year. October tends to be the wettest, receiving 329 mm (13 in) of rain, while February is much drier with just 29 mm (1.1 in). Travelers should note that the rainy season falls during May, June, July, August, September, October and November, bringing substantial precipitation ranging from 210 mm (8.3 in) to 329 mm (13 in) monthly.
For those seeking sunshine, January usually has the brightest skies, making it an excellent time for exploring the region.