April in Ny-Alesund is the sunniest month of the year. In April, the weather in Ny-Alesund is typically freezing. Average daily high temperature in April is about 8 degrees below zero. On average, Ny-Alesund has 9 partly cloudy, 8 sunny, 7 cloudy, and 6 snowy days in April. The snowfalls are usually light.