August in Kalaupapa is the sunniest month of the year. In August, the weather in Kalaupapa is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Kalaupapa has 28 sunny, 2 partly cloudy, and 1 rainy day in August. The rains are usually light. August as well as January, April, May, and June is considered the most comfortable time to visit Kalaupapa.