In April, the weather in Parry Sound is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Parry Sound has 9 sunny, 8 rainy, 7 partly cloudy, 5 cloudy, and 1 snowy day in April. The rains are usually heavy. April as well as March, October, November, and December is considered the most uncomfortable time to visit Parry Sound.