In April, the weather in Hachinohe is typically warm. Average daily high temperature in April is about 11 degrees above zero. On average, Hachinohe has 12 rainy, 8 sunny, 7 partly cloudy, and 3 cloudy days in April. The rains are usually heavy. April as well as January, February, March, and July is considered the most uncomfortable time to visit Hachinohe.