December in Carlos Chagas is the rainiest month of the year. In December, the weather in Carlos Chagas is typically hot. Average daily high temperature in December is about 28 degrees above zero. On average, Carlos Chagas has 25 rainy, 4 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 Carlos Chagas.