April in Trois-Rivieres is the windiest month of the year. In April, the weather in Trois-Rivieres is typically warm. Average daily high temperature in April is about 9 degrees above zero. On average, Trois-Rivieres has 10 rainy, 8 sunny, 8 partly cloudy, and 4 cloudy days in April. The rains are usually heavy. April as well as March, October, and November is considered the most uncomfortable time to visit Trois-Rivieres.