February in Friday Harbor is the cloudiest month of the year. In February, the weather in Friday Harbor is typically cold. Average daily high temperature in February is about 8 degrees above zero. On average, Friday Harbor has 21 rainy, 4 sunny, 3 cloudy, and 1 partly cloudy day in February. The rains are usually heavy. February as well as January, March, April, and October is considered the most uncomfortable time to visit Friday Harbor.