January in Constanţa averages a daily high of 5°C with nights around -0.9°C. Expect roughly 8.6 wet days totalling 39.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Constanţa is May–October.
Based on CONSTANTA, RO (4.4km), 1995–2024. 30 years of January data.