January in Katsuta is the sunniest and the coldest month of the year. In January, the weather in Katsuta is typically cold. Average daily high temperature in January is about 7 degrees above zero. On average, Katsuta has 18 sunny, 7 rainy, and 6 partly cloudy days in January. The rains are usually heavy. January as well as February, March, April, and June is considered the most uncomfortable time to visit Katsuta.