May in Bongao is the sunniest and the hottest month of the year. In May, the weather in Bongao is typically hot. Average daily high temperature in May is about 29 degrees above zero. On average, Bongao has 20 rainy, 8 sunny, 2 partly cloudy, and 1 cloudy day in May. The rains are usually moderate. May as well as January, June, July, and August is considered the most uncomfortable time to visit Bongao.