Hi! I'll be going to Shanghai on 14/9/10 till the end of Sept 2010. I will also visit other places like Suzhou, Wuzhen, Huangshan and Hangzhou. Hence, I shall appreciate if you would kindly advise me on the weather condition and type of clothing suitable for my trip there. As I will also be visiting the expo, would it be advisable to bring along an umbrella? By the way, where can I purchase tickets for the acrobatic show in Shanghai? Can I do that on the internet? How much is it? Thank you.