May in Portree is the sunniest month of the year. In May, the weather in Portree is typically warm. Average daily high temperature in May is about 11 degrees above zero. On average, Portree has 19 rainy, 7 sunny, and 5 partly cloudy days in May. The rains are usually heavy. May as well as January, February, March, and April is considered the most uncomfortable time to visit Portree.