May in Strathpeffer is the sunniest month of the year. In May, the weather in Strathpeffer is typically warm. Average daily high temperature in May is about 11 degrees above zero. On average, Strathpeffer has 22 rainy, 4 sunny, 4 cloudy, and 1 partly cloudy day in May. The rains are usually moderate. May as well as January, February, March, and April is considered the most uncomfortable time to visit Strathpeffer.