Is the Euphrates River Fresh Water?

Variable Salinity, Generally Higher Than Other Major Rivers

The Euphrates' salinity fluctuates with season and distance from the mouth. It is generally more saline than the Tigris or Nile.

• Average salinity at Hit, Iraq: ~1,500 mg/L.
• Near its mouth: ~2,500 mg/L.

While not as salty as seawater (~35,000 mg/L), it is considered brackish in many stretches, especially downstream.