July in Iquitos is the sunniest month of the year. In July, the weather in Iquitos is typically hot. Average daily high temperature in July is about 28 degrees above zero. On average, Iquitos has 26 rainy and 5 sunny days in July. The rains are usually heavy. July as well as January, February, March, and April is considered the most uncomfortable time to visit Iquitos.