December in Jujuy is the rainiest month of the year. In December, the weather in Jujuy is typically warm. Average daily high temperature in December is about 22 degrees above zero. On average, Jujuy has 25 rainy, 4 sunny, and 2 cloudy days in December. The rains are usually moderate. December as well as February and March is considered the most uncomfortable time to visit Jujuy.