In April, the weather in Ribeirão Pires is typically warm. Average daily high temperature in April is about 22 degrees above zero. On average, Ribeirão Pires has 21 rainy, 6 sunny, and 3 partly cloudy days in April. The rains are usually heavy. April as well as January, February, March, and October is considered the most uncomfortable time to visit Ribeirão Pires.