December in Belford Roxo is the cloudiest month of the year. In December, the weather in Belford Roxo is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Belford Roxo has 24 rainy, 5 sunny, 1 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, March, and November is considered the most uncomfortable time to visit Belford Roxo.