The weather in Thailand is made up of three major seasons, the hot season (April to June), the rainy or green season (July to October) and the cool season (November to March). In general, the best time to visit Thailand is in the cool season from October to March, when temperatures ease off and skies are clear. The wet season varies in Thailand’s southern beaches and when Phuket is wet, Koh Samui may be sunny. Some travelers think the best time to go to Thailand is the green season when it is less crowded and prices are at their lowest.
Here is your guide on what to expect, where and when. For a detailed temperature and rainfall chart, take a look at the Thailand: When to go section of our website.