In April, the weather in Sao Jose dos Campos is typically warm. Average daily high temperature in April is about 23 degrees above zero. On average, Sao Jose dos Campos has 19 rainy, 6 sunny, and 5 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 Sao Jose dos Campos.