Although Thailand’s weather can be hot and humid throughout the entire year, the North of the country can provide a much more comfortable climate than the sweltering heat of other parts. Known as the “cool capital”, Chiang Mai (and the rest of Northern Thailand) has three distinct seasons; hot season, cool season and rainy (monsoon) season.
From mid-March to June is usually hot and humid with daytime maximums regularly reaching 40°C; with high humidity (but virtually no rain) travelers will find this time of year the most difficult to cope with unless they are completely accustomed to tropical heat. Also, with ‘hot season haze’ obscuring the beautiful vistas of Northern Thailand, we recommend planning a trip to Thailand at a different time of year.
Around the end of May until November is the monsoon season characterized torrential downpours which can seemingly appear out of nowhere. With these sudden bursts only lasting an hour or so, this season is a very pleasant time to visit Northern Thailand bringing respite from the heat and a gorgeous, lush landscape; just don’t forget your insect repellant!
The cool season is the peak tourist season for Thailand, running from November through to February. During this time of year, daytime temperatures can still climb above 30°C however the air is drier than usual and evenings can be pleasantly chilly. If visiting Northern Thailand at this time of year, it is suggested to bring gear suitable for a variety of different weather patterns.