July in Langfang is the rainiest and the hottest month of the year. In July, the weather in Langfang is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, Langfang has 15 sunny, 9 rainy, and 7 partly cloudy days in July. The rains are usually heavy. July as well as January, February, November, and December is considered the most uncomfortable time to visit Langfang.