February in Nyköping is the snowiest month of the year. In February, the weather in Nyköping is typically freezing. Average daily high temperature in February is about 1 degree above zero. On average, Nyköping has 9 cloudy, 8 partly cloudy, 6 sunny, 3 rainy, and 3 snowy days in February. The rains are usually light. February as well as January, March, April, and May is considered the most uncomfortable time to visit Nyköping.