The Chari River: Geography and Key Facts

Nov 06, 2025 0

The Chari River, also known as the Shari River, is a vital waterway in Central Africa. This 1,400-kilometer (870 mi) long river flows through Chad and the Central African Republic, playing a crucial role in the region's ecosystem and supporting a significant portion of Chad's population.

Topography of Chad

River Course and Tributaries

The Chari River is formed by the Bamingui (its true headstream), the Gribingui, and the Ouham, which contributes the greatest volume of water. Near Sarh, the Chari is joined on its right bank by the Aouk, Kéita, and Salamat rivers, parallel streams that mingle in an immense floodplain. The Salamat, which rises in Darfur in Sudan, is fed by the waters of Lake Iro in its middle course.

The Aouk, which forms the boundary between Chad and the Central African Republic, also rises in Darfur and sluggishly drains an immense marshy plain. During the dry season, it is sometimes reduced to a succession of stagnant ponds; its floodwaters empty into the Chari in an extensive delta.

Downstream from Sarh, the Chari crosses the Gay Rapids near Niellim, broadening to 3 or 4 miles (5 or 6.5 km), and in its lower reaches divides into many channels. At N’Djamena, to the west, it joins the Logone and flows into Lake Chad through several distributaries.

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The Chari basin covers 250,000 square miles (650,000 square km), and the river unites the drainage of the southern part of the Chad inland basin. Steamboats navigate the main river for more than 530 miles (850 km) in the wet season.

Lake Chad and the Chari River's Significance

The Chari River is the principal tributary feeding Lake Chad in north-central Africa. It provides 90 percent of the water flowing into Lake Chad. Lake Chad gets about 90 per cent of its water from the Chari and Logone rivers.

These lake-feeding rivers are subject to considerable annual fluctuations with respect to their water level. The water level of the lake alternates to the rhythm of the rainy seasons, and can either cause floods over kilometres of flat land, or shrink to occupy a smaller area. The flooded areas, that can extend to 8000 square kilometres, are being used by both fishermen and farmers.

Lake Chad’s surface was conspicuously reduced in the 1960’s, when the quantity of water carried by the Chari River decreased by more than 50 per cent. The decrease took alarming proportions during the droughts of the 1970’s. Presently Lake Chad’s water level stands at about 240 metres above mean sea level, and covers approximately 12,000 to more than 20,000 square kilometres (depending on whether it is a dry or rainy season).

Lake Chad Basin

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Lake Chad is the country’s largest body of water covering some 25 000Km2, it is located on Chad’s western border close to Nigeria and Niger. Although its average depth ranges from only 4-7m, under normal precipitation conditions it has an estimated capacity of 35. 000 million m3. The lake is fed by two permanent rivers, the Chari and its tributaries, and the Logone. These provide the lake with 95% of its total yearly recharge. The Chari (1200km in length) and the Logone (790Km) constitute the major part of the primary hydrography network of Chad.

Chari-Baguirmi Region

Chari-Baguirmi is one of the 23 main regions in the country of Chad. It is located in the central part of Chad. It gets its name from two key features: the Chari River and the historic Baguirmi Kingdom. The region is known for its flat lands and the mighty Chari River. This river flows through the western and southern parts of the region. The Chari River is one of the largest rivers in Chad. It helps to make the land fertile, which means good for farming. The river also supports many types of animals. People living near the river often use it for fishing and transportation.

Chad's Demographics and Infrastructure

Chad’s population estimated at 12 Million, is concentrated in the southwest of the country and only 21% live in urban areas. The capital, N’djamena is located on the southeastern tip of Chari River by the Cameroonian border. There are over 110 recognised ethnic groups; the main groups being Baguirmi, Sara, Toubous, Ngambayes, Goulayes, Hadjarais, Kanembous, Zaghawas, Ouaddaï, Arab and others.

Chad’s paved highways extend for 1.300Km and the main routes connect N’Djamena to Mongo and Dandi to the north. The southwest has an extensive network to dirt roads that are in very good condition. However, during this season most commodities are transported along the Chari and Logone Rivers.

Air France, Ethiopian Airlines, Royal Air Maroc, Sky, Ifriqiya, Egypt Air, Sudan airways and Turkis airlines provide regular passenger and airfreight service to Europe and other destinations from N’Djamena.

Additional Facts

The watershed of the river covers 548,747 square kilometres (211,872 sq mi).
As of 2016, Chad remains one of four countries where Guinea worm disease remains endemic.
The river supports an important local fishing industry.

British explorers mapped it in 1823.