In May, the weather in Playa Hermosa is typically hot. Average daily high temperature in May is about 29 degrees above zero. On average, Playa Hermosa has 18 rainy, 7 partly cloudy, 5 sunny, and 1 cloudy day in May. The rains are usually heavy. May as well as June, July, August, and September is considered the most uncomfortable time to visit Playa Hermosa.