January in Iquitos is the windiest month of the year. In January, the weather in Iquitos is typically hot. Average daily high temperature in January is about 30 degrees above zero. On average, Iquitos has 26 rainy, 2 cloudy, 2 partly cloudy, and 1 sunny day in January. The rains are usually heavy. January as well as February, March, April, and May is considered the most uncomfortable time to visit Iquitos.