Which rivers and sources of water help maintain the Black Sea’s water balance?

The water balance of the Black Sea is maintained by a combination of several key factors, including precipitation, surface evaporation, water exchange through the Bosporus, and inflow from the continental mass and the Sea of Azov.5

The sea receives significant freshwater input from major rivers that drain large portions of the European continent. These include:

• The Danube River: A primary contributor that flows into the Black Sea via a large delta.1
• The Dnieper River: A major waterway that flows south through Russia, Belarus, and Ukraine before reaching the sea.2
• The Dniester River: A river rising in the Carpathian Mountains that flows into the Black Sea near Odesa.3
• Turkish Rivers: Several rivers in northern Turkey, such as the Sakarya, Yeşil, and Kızıl, also drain into the Black Sea.4

The overall water level of the sea fluctuates slightly based on the variations in these components, though tides are virtually nonexistent.5