In May, the weather in Nakashibetsu is typically warm. Average daily high temperature in May is about 12 degrees above zero. On average, Nakashibetsu has 14 rainy, 7 cloudy, 5 sunny, and 5 partly cloudy days in May. The rains are usually moderate. May as well as March, April, and November is considered the most uncomfortable time to visit Nakashibetsu.