March in Ocean City is the windiest month of the year. In March, the weather in Ocean City is typically warm. Average daily high temperature in March is about 13 degrees above zero. On average, Ocean City has 11 sunny, 10 rainy, 8 partly cloudy, and 2 cloudy days in March. The rains are usually heavy. March as well as January, February, July, and August is considered the most uncomfortable time to visit Ocean City.