January in Jönköping is the snowiest, the cloudiest, and the most freezing month of the year. In January, the weather in Jönköping is typically freezing. Average daily high temperature in January is about zero. On average, Jönköping has 13 cloudy, 9 partly cloudy, 5 rainy, 3 snowy, and 1 sunny day in January. The rains are usually moderate. January as well as February, March, April, and May is considered the most uncomfortable time to visit Jönköping.