July in Zhangjiakou is the warmest month of the year. In July, the weather in Zhangjiakou is typically warm. Average daily high temperature in July is about 26 degrees above zero. On average, Zhangjiakou has 16 partly cloudy, 13 sunny, and 2 rainy days in July. The rains are usually light. July as well as May, June, August, and September is considered the most comfortable time to visit Zhangjiakou.