September in Tanjung Selor is the hottest month of the year. In September, the weather in Tanjung Selor is typically hot. Average daily high temperature in September is about 31 degrees above zero. On average, Tanjung Selor has 28 rainy and 2 cloudy 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 Tanjung Selor.