Hi how I will going to Dongguan end of Dec 2014 & celebrate New Year 2015 in Shenzhen

During the weather forecast, the temperature during the end of Dec., 2014 in Dongguan is 44.6 F to 64.4 F. The temperature in Guangzhou shall be a little higher. But generally, it is cool, even a little bit cold at nights. You can bring your light jackets and jeans.