We would like to know weather(rainfall) during 8-13 September 2012 of Lijiang.

It is the wet season in Sept with plenty of rainfall in that area. The average temperature is usually about 12~20C at that time. It may be very cool after the rain. Except for short-sleeved T-shirts and shorts, it's also advisable to take some warm clothes like a thin overcoat and long pants plus an umbrella or rain gear.