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River

Casamance River

401 km from source to mouth · Senegal.

SenegalSenegalFlows into Atlantic Ocean2nd longest in Senegal

Follow the riverMonth by month

SourceMouthKolda
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

401km

Average flow

86m³/s

Basin

18,700km²

Drop

39m

from 39 m to 0 m

Country

1

The journey

From source to mouth

401 km of river and 8 stops on the way: 7 towns and cities on its banks, dams, bridges and the tributaries that feed it.

50 m0 m
Sourceat 39 m0 km
Kolda103,574 people118 km
Saré Yoba Diéga3,551 people150 km
Diana Malari3,066 people180 km
Sédhiou31,511 people242 km
Diattakounda4,356 people282 km
Goudomp18,239 people314 km
Soungrougroutributary339 km
Atlantic Oceanat 0 m401 km
0100200300401 km
  1. 0 kmSourceat 39 m
  2. 118 kmKolda103,574 people
  3. 150 kmSaré Yoba Diéga3,551 people
  4. 180 kmDiana Malari3,066 people
  5. 242 kmSédhiou31,511 people
  6. 282 kmDiattakounda4,356 people
  7. 314 kmGoudomp18,239 people
  8. 339 kmSoungrougroutributary
  9. 379 kmZiguinchor214,874 people
  10. 401 kmAtlantic Oceanat 0 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in Senegal

At the mouth it carries 86 m³/s on average: an Olympic pool every 29 seconds. It drops from 39 m to 0 m, 0.1 m per kilometre on average. Its basin covers 18,700 km², about the size of FJ. 868,000 people live in it. Highest water: September; lowest: from January to April. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • ZiguinchorLargest city on its banks · 214,874 people
  • Ziguinchor Airport (ZIG)Nearest airport with scheduled flights, 4 km from the cityCar hire at DSS airport (Dakar)Discover Cars · Affiliate link
  • On the water17 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From December to FebruaryThe best months to visit

Casamance River, month by month

Highest water: September

Lowest water: from January to April. Best months to visit: from December to February.

15
24°0 mmJan
15
26°0 mmFeb
15
28°0 mmMar
15
29°0 mmApr
16
30°12 mmMay
43
29°110 mmJun
140
27°262 mmJul
270
27°366 mmAug
330
27°281 mmSep
240
28°105 mmOct
110
26°5 mmNov
34
24°1 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 15 m³/s in the lowest month to 330 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.

Plan the trip

Plan the trip: boat trips, a bed by the river, a car

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The basin

Casamance River: the basin in numbers

14,867 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.0% of a year's flow: the river still keeps its natural rhythm.
  • 868,000people live in the basin
  • 60/km²people per km²
  • 35maverage altitude of the basin
  • 1,062mmof rain a year (basin average)
  • 26.9°Caverage air temperature
  • 15%protected areas

What covers the basin

  • 30% Forest
  • 12% Cropland
  • 35% Pasture
  • 1% Towns and cities

RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.

Along the river

Casamance River: what you find on the way

  • 4DamsBarrage anti-sel de diopcounta and 3 more
  • 2Boat ramps
  • 11Ferry piersSédhiou, Gare Maritime de Ziguinchor and 9 more
  • 4MarinasAdéane, Agnack Petit and 2 more

From OpenStreetMap, within 1.9 km of the river. Not mapped is not the same as not there.

From space

The source and the mouth, seen from orbit

Casamance River: satellite view of the source
The source14 km across
Casamance River: satellite view of the mouth
The mouth17 km across

Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.

Photos

Casamance River in pictures

ZiguinchorCasamance
KaBa ( KaaBaa ) · CC BY 3.0
Baobab de casamance
Nikocra · CC BY-SA 3.0
DauphinsCasamance
Widemos · CC BY-SA 2.0
Karabane 294A4597 Casamance
Christian Pirkl · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (1)

Also: Soungrougrou

Where these numbers come from

Name, length, placesWikidata (Q255093) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons

Every source and licence is on the data sources page.

The family

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