January in Puerto Maldonado is the rainiest month of the year. In January, the weather in Puerto Maldonado is typically hot. Average daily high temperature in January is about 29 degrees above zero. On average, Puerto Maldonado has 30 rainy and 1 sunny day in January. The rains are usually heavy. January as well as February, March, April, and October is considered the most uncomfortable time to visit Puerto Maldonado.