September in Puerto Francisco de Orellana is the windiest and the hottest month of the year. In September, the weather in Puerto Francisco de Orellana is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, Puerto Francisco de Orellana has 23 rainy, 6 cloudy, and 1 sunny day in September. The rains are usually heavy. September as well as January, February, March, and April is considered the most uncomfortable time to visit Puerto Francisco de Orellana.