April in Rock Sound is the sunniest month of the year. In April, the weather in Rock Sound is typically warm. Average daily high temperature in April is about 24 degrees above zero. On average, Rock Sound has 25 sunny, 4 partly cloudy, and 1 rainy day in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most comfortable time to visit Rock Sound.