The best time to visit Chiang Rai is from October to February
as the weather is much cooler and less humid. The average annual temperature is around 24 ℃, but it can go as high as 36 ℃, and as low as 10-15 ℃, depending on the more warmer or cooler seasons. Winters are an excellent time to trek and go on a cruise.
Although beware of the tourist crowd also it's essential to carry warm clothing. Summers (March-May) see a surge in temperature which can go as high as 36-degrees Celcius while the rainy season (June - September) see the low temperature with 80% of humidity. The months of April to June are the worst months to visit Chiang Rai because it's extremely humid and sightseeing would be very uncomfortable. Indoor activities, museum visits and waterfalls are great places to explore during warm and rainy seasons.Read More