January in Niš averages a daily high of 5.3°C with nights around -2.3°C. Expect roughly 12.2 wet days totalling 50.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Niš is April–June.
Based on NIS, RI (1km), 1995–2024. 24 years of January data.