In May, the weather in Punta-Arenas is typically cold. Average daily high temperature in May is about 6 degrees above zero. On average, Punta-Arenas has 15 cloudy, 13 rainy, and 3 sunny days in May. The rains are usually light. May as well as January, February, March, and April is considered the most uncomfortable time to visit Punta-Arenas.