In October, the weather in Itaperuna is typically warm. Average daily high temperature in October is about 27 degrees above zero. On average, Itaperuna has 19 rainy, 6 sunny, 5 partly cloudy, and 1 cloudy day in October. The rains are usually heavy. October as well as January, February, March, and November is considered the most uncomfortable time to visit Itaperuna.