January in Elmshorn is the snowiest and the coldest month of the year. In January, the weather in Elmshorn is typically cold. Average daily high temperature in January is about 2 degrees above zero. On average, Elmshorn has 20 rainy, 5 cloudy, 4 sunny, 1 snowy, and 1 partly cloudy day in January. The rains are usually moderate. January as well as February, October, November, and December is considered the most uncomfortable time to visit Elmshorn.