February in Sao Paulo is the cloudiest and the warmest month of the year. In February, the weather in Sao Paulo is typically warm. Average daily high temperature in February is about 25 degrees above zero. On average, Sao Paulo has 26 rainy and 3 sunny days in February. The rains are usually heavy. February as well as January, March, April, and October is considered the most uncomfortable time to visit Sao Paulo.