October in Passo Fundo is the windiest month of the year. In October, the weather in Passo Fundo is typically warm. Average daily high temperature in October is about 23 degrees above zero. On average, Passo Fundo has 15 rainy, 9 sunny, 4 partly cloudy, and 3 cloudy days in October. The rains are usually heavy. October as well as January, February, March, and December is considered the most uncomfortable time to visit Passo Fundo.