Your Travel Guide to Thailand
All information & tips to prepare your trip in Thailand
What is the weather in Koh Samui?
About the climate in Koh Samui
Koh Samui has a tropical savanna climate. The island has only one month of true dry season (February). The climate is hot and humid for most of the year but the island is on average less humid than Phuket. The rainiest months are October and especially November. The rest of the year, given the tropical climate, showers are brief.The best mome,nt to come to Koh Samui is from January to April but Samui is also enjoyable during the months of July and August. At this time of the year Koh Samui, Koh Phangan and Koh Tao are the islands of Thailand where the weather is the best. The months of October and especially November (sometimes until mid-December) are not recommended for a stay in Ko Samui.
Weather now in Koh Samui and forecast
Average temperatures in Koh Samui
Average high / Average low temperatures °C (source: TMD)
Average rainfall in Koh Samui
Average rainfall in millimeters (source: TMD)
*These graphics have been compiled with temperature and precipitation data from the Thai Department of Meteorology (TMD). They reflect trends to help you plan your trip to Thailand but are not actual weather forecasts.
General information about weather in Thailand
You can find weather information for entire Thailand, including the average rainfall month by month maps on ''Weather in Thailand''.
