May in Peebles is the sunniest month of the year. In May, the weather in Peebles is typically warm. Average daily high temperature in May is about 11 degrees above zero. On average, Peebles has 23 rainy, 4 sunny, and 4 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 Peebles.