December in Punta-Arenas is the cloudiest month of the year. In December, the weather in Punta-Arenas is typically warm. Average daily high temperature in December is about 11 degrees above zero. On average, Punta-Arenas has 15 rainy, 15 cloudy, and 1 sunny day in December. The rains are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Punta-Arenas.