March in Armagh is the sunniest month of the year. In March, the weather in Armagh is typically cold. Average daily high temperature in March is about 9 degrees above zero. On average, Armagh has 14 rainy, 7 partly cloudy, 6 cloudy, and 4 sunny days in March. The rains are usually moderate. March as well as January, February, April, and May is considered the most uncomfortable time to visit Armagh.