April in Mont Tremblant is the windiest month of the year. In April, the weather in Mont Tremblant is typically cold. Average daily high temperature in April is about 6 degrees above zero. On average, Mont Tremblant has 17 rainy, 8 cloudy, and 5 sunny days in April. The rains are usually heavy. April as well as January, February, May, and October is considered the most uncomfortable time to visit Mont Tremblant.