What is the temperature in Beijing, Shanghai, Xian, Suzhou, Hangzhou, Guilin and Hongkong from 6 until 22 May?

Generally, these cities do have sunny days with less rainfall. In north China, Beijing and Xian will be cool in early morning but warm enough at daytime. You should prepare a jacket in case of some windy night. The temperature will be 20C on average.

Shanghai, Suzhou and Hangzhou will be plenty of sunshine and young locals may have cool summer clothes. For elders, thin long-sleeved shirt will be ok. You may found Guilin is humid in the summer. Hong Kong should have the highest temperature where cool summer clothes will be ok. Be aware of the rainfall sometimes. You'd better check the weather before leaving.