View our Koh Samui weather forecast above for the next five days outlook. If you’re planning to go at a later date, here’s some tips for year round weather conditions in Koh Samui.
Quite similar to other regions in Thailand, travellers prefer to visit the region between December and February, when Koh Samui is in its dry season. Typically you will find a cool breeze about the air and a great temperature right throughout the day. September to November is the wet season and most tourists are advised that these are the months of the year when the weather it at its worst. Rain showers don’t often last much longer than a couple of hours, but you must be prepared that they will arrive throughout these months. Finally, the hot season for Koh Samui holidays is between March and August when temperatures often reach 35 degrees celsius throughout the day.