July in Chongjin is the rainiest and the cloudiest month of the year. In July, the weather in Chongjin is typically warm. Average daily high temperature in July is about 22 degrees above zero. On average, Chongjin has 13 rainy, 8 partly cloudy, 7 sunny, and 3 cloudy days in July. The rains are usually heavy. July as well as March and November is considered the most uncomfortable time to visit Chongjin.