December in Puerto Maldonado is the windiest month of the year. In December, the weather in Puerto Maldonado is typically hot. Average daily high temperature in December is about 29 degrees above zero. On average, Puerto Maldonado has 29 rainy and 2 sunny days in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Puerto Maldonado.