March weather forecast in Roseau

March in Roseau is the coldest month of the year. In March, the weather in Roseau is typically warm. Average daily high temperature in March is about 26 degrees above zero. On average, Roseau has 16 partly cloudy, 13 sunny, and 2 rainy days in March. The rains are usually light. March as well as February is considered the most comfortable time to visit Roseau.