June in Atami is the rainiest and the cloudiest month of the year. In June, the weather in Atami is typically warm. Average daily high temperature in June is about 21 degrees above zero. On average, Atami has 22 rainy, 6 cloudy, and 2 sunny days in June. The rains are usually heavy. June as well as February, March, and April is considered the most uncomfortable time to visit Atami.