January in Uppsala averages a daily high of 0.2°C with nights around -4.7°C. Expect roughly 11.6 wet days totalling 37.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Uppsala is May–September.
Based on UPPSALA AUT, SW (0.5km), 1995–2024. 30 years of January data.