canIswim

Sea temperature and swimming season in Romania

When the sea is warm enough to swim in 3 coastal cities in Romania.

CityWarmestColdestSwimming season
Constanţa 25.5°C Aug 6.5°C Feb Jun – Oct (5 months)
Mangalia 25.5°C Aug 6.9°C Feb Jun – Oct (5 months)
Năvodari 25.2°C Aug 5.5°C Feb Jun – Sep (4 months)

Season uses 19°C. Why that number, and where the data comes from