July in Blanc-Sablon is the rainiest month of the year. In July, the weather in Blanc-Sablon is typically warm. Average daily high temperature in July is about 14 degrees above zero. On average, Blanc-Sablon has 15 rainy, 7 partly cloudy, 6 sunny, and 3 cloudy days in July. The rains are usually heavy. July as well as January, February, April, and May is considered the most uncomfortable time to visit Blanc-Sablon.