September in Mataiva is the windiest month of the year. In September, the weather in Mataiva is typically warm. Average daily high temperature in September is about 26 degrees above zero. On average, Mataiva has 21 sunny, 6 rainy, and 3 partly cloudy days in September. The rains are usually heavy. September as well as August is considered the most comfortable time to visit Mataiva.