January in Norrköping averages a daily high of 1.1°C with nights around -3.9°C. Expect roughly 12 wet days totalling 36.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Norrköping is May–September.
Based on NORRKOPING SMHI, SW (2.5km), 1995–2024. 30 years of January data.