December in Playa Hermosa is the sunniest month of the year. In December, the weather in Playa Hermosa is typically hot. Average daily high temperature in December is about 29 degrees above zero. On average, Playa Hermosa has 24 sunny, 6 partly cloudy, and 1 rainy day in December. The rains are usually light. December as well as January is considered the most comfortable time to visit Playa Hermosa.