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