In April, the weather in Trois-Rivieres is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Trois-Rivieres has 16 rainy, 6 sunny, 5 partly cloudy, and 3 cloudy days in April. The rains are usually moderate. April as well as May, October, and November is considered the most uncomfortable time to visit Trois-Rivieres.