What's the weather like in Yunnan during the summer vacation?

First of all, it depends on the climate you adapt to and where to play in Yunnan. And the way to travel.

The recommended places to go to Yunnan are Lijiang, Xishuangbanna, Shangri-La and so on. If it is only in Kunming, there are also good scenery around. Kunming has a mild climate. If it rains, it won't be too heavy these two days. If the weather gets hot, the locals may feel too hot, but outsiders should feel just right. If you go to Lijiang, the ultraviolet rays are strong, you should pay attention to sun protection. Xishuangbanna has a tropical climate, which may be a little humid. As for Shangri-La, I'm not sure, but the road conditions are very complicated.

In fact, if you don't go to these places, you can also consider Jianshui, Mengzi, Maitreya and other places, where you eat more and play more, and the weather is good, similar to Kunming. It's neither cold nor hot, but it rains intermittently. You can also consider taking a train to see the surrounding scenery.