September in Puerto Cabello is the hottest month of the year. In September, the weather in Puerto Cabello is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, Puerto Cabello has 18 rainy, 7 sunny, and 5 partly cloudy days in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit Puerto Cabello.