March in Kumamoto is the windiest month of the year. In March, the weather in Kumamoto is typically warm. Average daily high temperature in March is about 15 degrees above zero. On average, Kumamoto has 12 rainy, 7 sunny, 6 cloudy, and 6 partly cloudy days in March. The rains are usually heavy. March as well as January, February, June, and July is considered the most uncomfortable time to visit Kumamoto.