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River

Black Volta

1,352 km from source to mouth · Ghana, Ivory Coast and Burkina Faso.

GhanaIvory CoastBurkina FasoGhana, Ivory Coast and Burkina FasoFlows into Volta River2nd longest in Ghana

Follow the riverMonth by month

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

In numbers

Length

1,352km

Average flow

260m³/s

Basin

140,000km²

Drop

245m

from 320 m to 75 m

Countries

3

The journey

From source to mouth

1,352 km of river and 2 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.

320 m75 m
Sourceat 320 m0 km
Bui Dam1,047 km
Taintributary1,071 km
Volta Riverat 75 m1,352 km
05001,0001,352 km
  1. 0 kmSourceat 320 m
  2. 1,047 kmBui Dam
  3. 1,071 kmTaintributary
  4. 1,352 kmVolta Riverat 75 m

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

River in Burkina Faso, Ivory Coast, and Ghana

At the mouth it carries 263 m³/s on average: an Olympic pool every 9.5 seconds. It drops from 320 m to 75 m, 0.2 m per kilometre on average. Its basin covers 140,000 km², about the size of NP. 7.1 million people live in it. Highest water: September; lowest: from January to April. Its dams hold back little of its water (2.0% of a year's flow).

Read more on Wikipedia

Where to start

  • SalagaLargest city on its banks · 25,472 people
  • Yakubu Tali International Airport (TML)Nearest airport with scheduled flights, 118 km from the cityCar hire at ACC airport (Accra)Discover Cars · Affiliate link
  • On the water10 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From December to JanuaryThe best months to visit

Black Volta, month by month

Highest water: September

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

180
26°1 mmJan
130
29°6 mmFeb
140
30°28 mmMar
180
31°60 mmApr
290
30°101 mmMay
460
28°132 mmJun
690
26°168 mmJul
950
26°197 mmAug
1,100
26°175 mmSep
960
28°73 mmOct
690
28°11 mmNov
400
26°4 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 130 m³/s in the lowest month to 1,100 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

Black Volta: the basin in numbers

154,023 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 2.0% of a year's flow.
  • 7.1millionpeople live in the basin
  • 46/km²people per km²
  • 291maverage altitude of the basin
  • 896mmof rain a year (basin average)
  • 27.6°Caverage air temperature
  • 8%protected areas
  • 0.1%covered by lakes
  • 0.3km³held in reservoirs

What covers the basin

  • 20% Forest
  • 16% Cropland
  • 30% 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

Black Volta: what you find on the way

  • 5DamsBarrage de Samendeni, Bui Dam and 3 more
  • 10Ferry piers

From OpenStreetMap, within 2.5 km of the river. Not mapped is not the same as not there.

From space

The source and the mouth, seen from orbit

Black Volta: satellite view of the source
The source14 km across
Black Volta: satellite view of the mouth
The mouth54 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

Black Volta in pictures

A top view of Black volta from Bamboi bridge
Knowledge and philosophy · CC BY-SA 4.0
A top view of Black volta from Bamboi bridge July 2025
Knowledge and philosophy · CC BY-SA 4.0
The beautiful black Volta (Ghana)
Andreas Aryeh · CC BY-SA 4.0

Where these numbers come from

Name, length, placesWikidata (Q1256528) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth 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

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit