December in Boao is the windiest month of the year. In December, the weather in Boao is typically warm. Average daily high temperature in December is about 21 degrees above zero. On average, Boao has 24 rainy, 3 sunny, 3 cloudy, and 1 partly cloudy day in December. The rains are usually heavy. December as well as January, May, June, and July is considered the most uncomfortable time to visit Boao.