June in Kaimana is the sunniest month of the year. In June, the weather in Kaimana is typically warm. Average daily high temperature in June is about 27 degrees above zero. On average, Kaimana has 27 rainy, 2 cloudy, and 1 sunny day in June. The rains are usually heavy. June as well as January, February, March, and April is considered the most uncomfortable time to visit Kaimana.