July in Guadalajara is the rainiest and the cloudiest month of the year. In July, the weather in Guadalajara is typically hot. Average daily high temperature in July is about 28 degrees above zero. On average, Guadalajara has 27 rainy, 3 cloudy, and 1 partly cloudy day in July. The rains are usually heavy. July as well as June, August, and September is considered the most uncomfortable time to visit Guadalajara.