July in Sozopol is the sunniest month of the year. In July, the weather in Sozopol is typically warm. Average daily high temperature in July is about 27 degrees above zero. On average, Sozopol has 23 sunny, 6 rainy, and 2 partly cloudy days in July. The rains are usually moderate. July as well as August and September is considered the most comfortable time to visit Sozopol.