March in Pico Island is the coldest month of the year. In March, the weather in Pico Island is typically warm. Average daily high temperature in March is about 15 degrees above zero. On average, Pico Island has 16 rainy, 9 cloudy, 4 sunny, and 2 partly cloudy days in March. The rains are usually heavy. March as well as January, February, April, and October is considered the most uncomfortable time to visit Pico Island.