July in Panama City is the rainiest and the cloudiest month of the year. In July, the weather in Panama City is typically hot. Average daily high temperature in July is about 29 degrees above zero. On average, Panama City has 22 rainy, 4 sunny, 3 partly cloudy, and 2 cloudy days in July. The rains are usually heavy. July as well as June and August is considered the most uncomfortable time to visit Panama City.