September in Boracay is the cloudiest month of the year. In September, the weather in Boracay is typically warm. Average daily high temperature in September is about 27 degrees above zero. On average, Boracay has 27 rainy, 2 cloudy, and 1 partly cloudy day in September. The rains are usually heavy. September as well as January, April, May, and June is considered the most uncomfortable time to visit Boracay.