September in Bridgetown is the hottest month of the year. In September, the weather in Bridgetown is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Bridgetown has 16 rainy, 12 sunny, and 2 partly cloudy days in September. The rains are usually heavy. September as well as June, July, August, and October is considered the most uncomfortable time to visit Bridgetown.