September in Maurice Bishop International Airport is the hottest month of the year. In September, the weather in Maurice Bishop International Airport is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Maurice Bishop International Airport has 15 rainy, 13 sunny, and 2 partly cloudy days in September. The rains are usually heavy. September as well as June, July, October, and November is considered the most uncomfortable time to visit Maurice Bishop International Airport.