December in Guangzhou is the windiest and the sunniest month of the year. In December, the weather in Guangzhou is typically warm. Average daily high temperature in December is about 20 degrees above zero. On average, Guangzhou has 15 sunny, 6 partly cloudy, 5 rainy, and 5 cloudy days in December. The rains are usually moderate. December as well as November is considered the most comfortable time to visit Guangzhou.