July in Deyang is the rainiest and the hottest month of the year. In July, the weather in Deyang is typically hot. Average daily high temperature in July is about 29 degrees above zero. On average, Deyang has 17 rainy, 8 sunny, 3 cloudy, and 3 partly cloudy days in July. The rains are usually heavy. July as well as August is considered the most uncomfortable time to visit Deyang.