I will travel to China in July/August.
I want to go to see many different parts of China, from Heilongjiang over Beijing, Shanghai and Hong Kong to Guangzhou, Guizhou, Hainan, Yunnan and Sichuan.
I am not sure if its that clever to visit those southern provinces because of the rain season.... What places in China are really (not-?)recommendable in July and August, and are the monsoons that strong that i should better go for another region than the south or the coast regions?

Thanks for your help!