August in Kaimana is the windiest month of the year. In August, the weather in Kaimana is typically warm. Average daily high temperature in August is about 27 degrees above zero. On average, Kaimana has 24 rainy, 6 cloudy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as January, February, March, and April is considered the most uncomfortable time to visit Kaimana.