I will go to nanjing in the start of september for my studies for 4 years......

In Spring and autumn, the climate is pleasant and comfortable, cool and sunny. In summer, the average ground temperature can reach 35C (95F) and the extreme highest point could reach 40C (104F) sometimes. In the coldest month - January, the temperature could be as low as -7C (19F). From mid-June to July is the rain period.
In Sep, it is not cold but a bit hot, the average temp is about 73 F. You can wear T-shirts and shorts.
For the city is known as one of the four hottest cities in China, so you don't need to take many heavy clothers, just shirts and shourts, jeans.

if see the weather forecast graphs given above, this is very similar to lahore. may br little more cool in winter. dressing used in lahore will work definitely. when are you leaving. i will also go there this year. contact me on rizi_chemyahoo.com.

Salam im also going there for 3 years contact me ammaratahir23gmail.com i have so many questions