August in Phú Quốc is the windiest month of the year. In August, the weather in Phú Quốc is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, Phú Quốc has 30 rainy and 1 cloudy day in August. The rains are usually heavy. August as well as April, May, June, and July is considered the most uncomfortable time to visit Phú Quốc.