July in Jeddah is the windiest, the cloudiest, and the hottest month of the year. In July, the weather in Jeddah is typically hot. Average daily high temperature in July is about 38 degrees above zero. On average, Jeddah has 17 partly cloudy and 14 sunny days in July. July as well as May, June, August, and September is considered the most uncomfortable time to visit Jeddah.