May in Constanţa averages a daily high of 20.8°C with nights around 13.2°C. Expect roughly 7.5 wet days totalling 43.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Constanţa is May–October.
Based on CONSTANTA, RO (4.4km), 1995–2024. 30 years of May data.