September in São Gonçalo do Amarante is the windiest and the sunniest month of the year. In September, the weather in São Gonçalo do Amarante is typically hot. Average daily high temperature in September is about 28 degrees above zero. On average, São Gonçalo do Amarante has 15 partly cloudy, 11 sunny, and 4 rainy days in September. The rains are usually light. September as well as October and November is considered the most comfortable time to visit São Gonçalo do Amarante.