September in Playa Del Carmen is the rainiest and the cloudiest month of the year. In September, the weather in Playa Del Carmen is typically hot. Average daily high temperature in September is about 30 degrees above zero. On average, Playa Del Carmen has 23 rainy and 7 sunny 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 Playa Del Carmen.