What should I wear to travel to Guizhou and Yunnan in April?

I'm from Yunnan, and now I'm in Guiyang. I can answer your questions.

As for clothes, you can wear a T-shirt or a single coat. You'd better take a wild coat, because it will be cold when it is windy at night. Well, if you want to climb mountains or something, you'd better put on your pants and go shopping. Flat shoes are the most convenient. Remember to bring a sun hat and sunglasses. Ultraviolet rays are generally very strong. In short, it's spring clothes, no difference. Have a nice trip!

By the way, if you go to Yunnan, I suggest the routes between Lijiang and Dali. If you go to Guizhou, I suggest going to Libo and some ancient towns (Qingyan, Zhenyuan, Xijiang and Leishan), which are more interesting.