September in Tagum is the hottest month of the year. In September, the weather in Tagum is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, Tagum has 26 rainy, 3 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 Tagum.