June in Santo Andre is the coldest month of the year. In June, the weather in Santo Andre is typically warm. Average daily high temperature in June is about 20 degrees above zero. On average, Santo Andre has 11 sunny, 8 partly cloudy, 7 rainy, and 4 cloudy days in June. The rains are usually heavy. June as well as July and August is considered the most comfortable time to visit Santo Andre.