September weather forecast in Mio

September in Mio is the sunniest month of the year. In September, the weather in Mio is typically warm. Average daily high temperature in September is about 19 degrees above zero. On average, Mio has 16 sunny, 7 rainy, and 7 partly cloudy days in September. The rains are usually moderate. September as well as July and August is considered the most comfortable time to visit Mio.