January in Sector 4 averages a daily high of 3.2°C with nights around -4.8°C. Expect roughly 9 wet days totalling 46.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Sector 4 is April–May.
Based on BUCURESTI BANEASA, RO (16km), 1995–2024. 30 years of January data.