August in Mataiva is the sunniest and the coldest month of the year. In August, the weather in Mataiva is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, Mataiva has 24 sunny, 5 rainy, and 2 partly cloudy days in August. The rains are usually light. August as well as September is considered the most comfortable time to visit Mataiva.