In March, the weather in Neu-Ulm is typically cold. Average daily high temperature in March is about 7 degrees above zero. On average, Neu-Ulm has 15 rainy, 8 sunny, 4 cloudy, and 4 partly cloudy 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 Neu-Ulm.