September in Palembang is the hottest month of the year. In September, the weather in Palembang is typically hot. Average daily high temperature in September is about 31 degrees above zero. On average, Palembang has 27 rainy, 2 cloudy, and 1 sunny day in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Palembang.