In May, the weather in Qinhuangdao is typically warm. Average daily high temperature in May is about 22 degrees above zero. On average, Qinhuangdao has 12 sunny, 9 partly cloudy, 7 rainy, and 3 cloudy days in May. The rains are usually moderate. May as well as September and October is considered the most comfortable time to visit Qinhuangdao.