December weather forecast in Monte Alto

December in Monte Alto is the rainiest and the cloudiest month of the year. In December, the weather in Monte Alto is typically warm. Average daily high temperature in December is about 27 degrees above zero. On average, Monte Alto has 29 rainy and 2 sunny days in December. The rains are usually heavy. December as well as January, February, March, and October is considered the most uncomfortable time to visit Monte Alto.