In April, the weather in Coral Harbour is typically freezing. Average daily high temperature in April is about 10 degrees below zero. On average, Coral Harbour has 12 partly cloudy, 9 sunny, 8 cloudy, and 1 snowy day in April. The snowfalls are usually light. April as well as January, February, March, and September is considered the most uncomfortable time to visit Coral Harbour.