September in Gorontalo is the hottest month of the year. In September, the weather in Gorontalo is typically hot. Average daily high temperature in September is about 28 degrees above zero. On average, Gorontalo has 21 rainy, 7 cloudy, and 2 sunny days in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Gorontalo.