i plan to go Shanghai on 23 Dec 15 to 29 Dec 2015, is it good weather to visit? prefer cold weather

Late December is winter time already. It's cold in that period of time. You need to bring thick overcoats, jackets and pants in order to keep warm.

During December the weather becomes cold and windy. The average high and low temperatures are 11 °C and 2 °C. Although it is not usual, it may snow this month. Until the middle of the month, the city parks still have their colorful leaves and natural fall beauty for you to see.