Between November and May the weather is mostly dry with little rain expected for much of this time. The dry season in Chiang Rai is broken up into the periods of cool season (November to February) and hot season (March to May), when it is not unusual for the temperature to reach up to 40°C.
The wet season in Chiang Rai is from May to October. The rain usually comes in the form of short showers, lasting an hour or two. As the rainy season progresses, the rain can become heavier and more constant, traditionally reaching peak levels in August and September.
Overall weather conditions in Chiang Rai
✦-perfect ✦-very good ✦-good ✦-uncomfy ✦-better stay home!
The best time to avoid rain in Chiang Rai
✦ - chance of getting wet is close to minimum
✦ - a bit of rain every few days might be expected
✦ - the rain isn't constant and long lasting, if any
✦ - chances of rainy day are higher than 50/50
✦ - not only umbrella can be handy, boat too!
Weather of Thailand regions
Thailand is big and at the same time the weather may vary a lot in different regions of the country. If you are planning to visit other parts of the country too, check what is the weather in all Thailand regions.
Thailand weather by month
Thailand weather changes significantly throughout the year. Check Thailand weather by month and get an idea what weather should be expected at the time of your visit.
The best time to visit Thailand
The peak tourism season of Thailand is the cool season lasting from November to February when the weather is coolest and driest but the country can be visited outside the peak tourism season - just choose the best time for your Thailand trip plan!