The weather didn't affect the trip to Yunnan in early August?

Usually July-August is indeed the rainy season in Yunnan, and it often rains in early August, but it rains in bursts. It seldom rains all day, which will have some influence on travel, but it is not big, as long as you take an umbrella and coat.

Recommended tourist attractions:

Fuxian Lake.

Dali

Lijiang

Shangri-La

FYI