In March, the weather in Sandusky is typically cold. Average daily high temperature in March is about 6 degrees above zero. On average, Sandusky has 9 partly cloudy, 8 rainy, 8 sunny, 5 cloudy, and 1 snowy day in March. The rains are usually heavy. March as well as January, February, April, and November is considered the most uncomfortable time to visit Sandusky.