In September, the weather in Qinhuangdao is typically warm. Average daily high temperature in September is about 24 degrees above zero. On average, Qinhuangdao has 13 sunny, 7 rainy, 7 partly cloudy, and 3 cloudy days in September. The rains are usually light. September as well as May and October is considered the most comfortable time to visit Qinhuangdao.