August in Buka is the sunniest and the coldest month of the year. In August, the weather in Buka is typically hot. Average daily high temperature in August is about 28 degrees above zero. On average, Buka has 21 rainy, 9 sunny, 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 Buka.