Although the weather in Thailand changes throughout the year, the best time to visit is from November to February, when the tropical country enjoys its lowest temperatures and the least amount of rain. If you are looking to avoid the crowds, however, consider traveling during the rainy season from May to October (ie. low season in Thailand), when daily rain showers come as a relief and there are few tourists to be found. 

Seasons in Thailand

• • The climate in Thailand is tropical and consists of three seasons. The average year-round temperature is 86 degrees Fahrenheit, 30 Celsius.
  • Hot season. During this hot summer season, temperatures regularly rise to 100 degrees Fahrenheit (38 Celsius).
    Monsoon season. Next, from the end of May to mid-October, is the rainy season, with August until October seeing the most rainfall. Sometimes the storms can be heavy, but most often, rain comes in short bursts.
  • Cold season. The last season, from mid-October to mid-February, features the coolest temperatures, with an average of 80 degrees Fahrenheit (27 Celsius). Thailand’s cold season also means flowers in bloom and green everywhere after the months of rainfall.

Low season in Thailand: Least Busy Time of Year in Thailand

Everything looks better under the sun: best time to visit Bangkok and Chiang Mai.

Rainy season in Thailand

During the monsoon season from July to October, few tourists come to Thailand. Because this season is full of rain showers, you’re pretty much guaranteed to get wet during your visit. If you can put up with an occasional storm, this is an excellent time to explore Thailand, especially by bike. Flight tickets are cheaper during the rainy season than the cold season, and all the rainfall means crops are flourishing and the country is extra green. When visiting Thailand during rainy season, expect hot, humid weather with rainfall that comes as a nice relief. If you think cycling in the wet season doesn't sound like fun our article on bike touring Southeast Asia in the "Green Season" might change your mind

Weather in Chiang Mai

Since Chiang Mai is located in the northern region of Thailand, its climate differs slightly from that of other parts of the country. Chiang Mai’s climate is that of a savannah, as it lies above sea level and features more dramatic changes in weather throughout the year. This means that the cold season in Chiang Mai and the northern region will have lower temperatures than the rest of the country.

The best time to visit Chiang Mai is November, when the Lantern festival, Yi Peng occurs. This time of year is cool and comfortable in Chiang Mai, and the festival of Yi Peng is a fascinating cultural experience for any visitor.

Find out more about the weather in Thailand and other destination information