Oueme River

Ouémé River
Weme River
The Oueme River where it flows into the Atlantic Ocean in Cotonou, Benin.
Countries	Benin, Nigeria
Source
- elevation	465 m (1,526 ft)
Mouth	Gulf of Guinea
- location	Cotonou, Benin
- elevation	0 m (0 ft)
- coordinates	6°21′11″N 2°26′39″E / 6.35306°N 2.44417°E / 6.35306; 2.44417Coordinates: 6°21′11″N 2°26′39″E / 6.35306°N 2.44417°E / 6.35306; 2.44417
Length	510 km (317 mi)
Basin	46,990 km2 (18,143 sq mi)
Discharge
- average	170 m3/s (6,003 cu ft/s)
- max	1,175 m3/s (41,495 cu ft/s)
- min	0 m3/s (0 cu ft/s)

The Ouémé River, also known as the Weme River, is a river in Benin. It rises in the Atakora Mountains, and is about 510 kilometres (320 mi) long. It flows past the towns of Carnotville and Ouémé to a large delta on the Gulf of Guinea near the seaport city of Cotonou. The largest tributaries are the Okpara River and the Alpouro River.