Which river has the greatest average annual discharge?

The Amazon River carries more water to the ocean than any other river, with an average discharge of roughly 209,000 cubic metres per second. That enormous flow comes from the river’s huge basin, heavy rainfall, and many large tributaries. By comparison, the Nile is far smaller in discharge even though it is among the longest rivers in the world. The Amazon’s mouth is so wide that its freshwater plume can be detected far out into the Atlantic. This record has been established for decades through hydrological measurements.