Why is the weather in Tibet changeable?

Tibet has a vast territory, with more than one million square kilometers, and there are considerable differences in altitude between different places. Linzhi is less than 3 kilometers above sea level and has a humid climate, while Naqu is more than 4.5 kilometers above sea level and has a dry and changeable climate. So the climate in different regions is different. The urban area of Lhasa is more than 3600 meters above sea level. Generally, it enters the rainy season from late May to August, but there is not much rain. There is both sunrise and rain in a day, which is the most comfortable season with humid climate and low temperature.