December in Itabuna is the windiest month of the year. In December, the weather in Itabuna is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Itabuna has 23 rainy, 6 sunny, 1 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, February, March, and April is considered the most uncomfortable time to visit Itabuna.