July in Sao Paulo is the sunniest month of the year. In July, the weather in Sao Paulo is typically warm. Average daily high temperature in July is about 20 degrees above zero. On average, Sao Paulo has 13 sunny, 11 partly cloudy, and 7 rainy days in July. The rains are usually moderate. July as well as August is considered the most comfortable time to visit Sao Paulo.