June in Iquitos is the coldest month of the year. In June, the weather in Iquitos is typically warm. Average daily high temperature in June is about 27 degrees above zero. On average, Iquitos has 25 rainy, 4 sunny, and 1 cloudy day in June. The rains are usually heavy. June as well as January, February, March, and April is considered the most uncomfortable time to visit Iquitos.