We are planning a trip to China in June. We will do Beijing, Shanghai, Xian, Gulin and both Li and Yangtze cruise.

Wanted to know if June mid week is good time to travel to China. I know it is the summer season and also rainy season in some parts of China.
Wanted to know if generally rains badly and without stop for days(like it does in India) or is it like passing showers.
Will it make travelling and seightseeing/ cruise unpleasant.

Thank in advance