In December, the weather in Campos dos Goytacazes is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Campos dos Goytacazes has 22 rainy, 4 sunny, 3 cloudy, and 2 partly cloudy days in December. The rains are usually heavy. December as well as January, March, and November is considered the most uncomfortable time to visit Campos dos Goytacazes.