April in Kasansai is the cloudiest month of the year. In April, the weather in Kasansai is typically warm. Average daily high temperature in April is about 11 degrees above zero. On average, Kasansai has 15 rainy, 5 sunny, 5 cloudy, and 5 partly cloudy days in April. The rains are usually heavy. April as well as March, May, June, and November is considered the most uncomfortable time to visit Kasansai.