July in Xi'an is the rainiest and the hottest month of the year. In July, the weather in Xi'an is typically hot. Average daily high temperature in July is about 33 degrees above zero. On average, Xi'an has 11 rainy, 11 sunny, 6 partly cloudy, and 3 cloudy days in July. The rains are usually heavy. July as well as January, August, and December is considered the most uncomfortable time to visit Xi'an.