January in Maastricht is the coldest month of the year. In January, the weather in Maastricht is typically cold. Average daily high temperature in January is about 5 degrees above zero. On average, Maastricht has 12 rainy, 11 cloudy, 4 sunny, and 4 partly cloudy days in January. The rains are usually moderate. January as well as February, March, October, and November is considered the most uncomfortable time to visit Maastricht.