August in Katsuta is the warmest month of the year. In August, the weather in Katsuta is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Katsuta has 14 rainy, 8 sunny, 6 partly cloudy, and 3 cloudy days in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Katsuta.