May weather forecast in Nikko

In May, the weather in Nikko is typically warm. Average daily high temperature in May is about 17 degrees above zero. On average, Nikko has 16 rainy, 6 sunny, 6 cloudy, and 3 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 Nikko.