April in Blanc-Sablon is the cloudiest month of the year. In April, the weather in Blanc-Sablon is typically freezing. Average daily high temperature in April is about 1 degree above zero. On average, Blanc-Sablon has 10 rainy, 10 cloudy, 9 snowy, and 1 sunny day in April. The rains are usually moderate. April as well as May, June, October, and November is considered the most uncomfortable time to visit Blanc-Sablon.