What kind of clothes should i bring to shanghai & beijing from sept 8-14?

It is still warm even hot during that time, with the highest temp of 28C in BJ and around 31C in Shanghai. There are many sunny days and a few rainy days. However, the temp gap may be a little large between daytime and nighttime. So apart from summer clothes, you are advised to prepare long-sleeved shirt and light jeans.