November in Friday Harbor is the windiest month of the year. In November, the weather in Friday Harbor is typically warm. Average daily high temperature in November is about 10 degrees above zero. On average, Friday Harbor has 23 rainy, 5 sunny, 1 cloudy, and 1 partly cloudy day in November. The rains are usually heavy. November as well as January, February, March, and April is considered the most uncomfortable time to visit Friday Harbor.