March in Wicklow is the sunniest month of the year. In March, the weather in Wicklow is typically cold. Average daily high temperature in March is about 8 degrees above zero. On average, Wicklow has 14 rainy, 11 cloudy, 5 sunny, and 1 partly cloudy day in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Wicklow.