September in Vila Velha is the windiest month of the year. In September, the weather in Vila Velha is typically warm. Average daily high temperature in September is about 25 degrees above zero. On average, Vila Velha has 16 sunny, 11 partly cloudy, 2 rainy, and 1 cloudy day in September. The rains are usually light. September as well as May, June, July, and August is considered the most comfortable time to visit Vila Velha.