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River

Beni River

1,100 km from source to mouth · Bolivia.

BoliviaBoliviaFlows into Madeira River2nd longest in Bolivia

Follow the riverMonth by month

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

In numbers

Length

1,100km

Average flow

8.9m³/s

Basin

850,000km²

Drop

80m

from 183 m to 103 m

Country

1

The journey

From source to mouth

1,100 km of river and 6 stops on the way: 3 towns and cities on its banks, dams, bridges and the tributaries that feed it.

183 m103 m
Sourceat 183 m0 km
Costa Marques12,627 people655 km
Cachoeira das Bananeiras1,019 km
Madeira Riverat 103 m1,100 km
02505007501,100 km
  1. 0 kmSourceat 183 m
  2. 655 kmCosta Marques12,627 people
  3. 992 kmGuayaramerín36,008 people
  4. 996 kmGuajará Mirim46,556 people
  5. 1,019 kmCachoeira das Bananeiras
  6. 1,037 kmCachoeira Pau Grande
  7. 1,041 kmCachoeira Lajes
  8. 1,100 kmMadeira Riverat 103 m

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

River in Bolivia

At the mouth it carries 8.9 m³/s on average: an Olympic pool every 281 seconds. It drops from 183 m to 103 m, 0.1 m per kilometre on average. Its basin covers 850,000 km², about the size of NA. 7.3 million people live in it. Highest water: from February to March; lowest: from July to October. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

Beni River, month by month

Highest water: from February to March

Lowest water: from July to October. Best months to visit: from May to August.

30,500
26°266 mmJan
34,600
26°232 mmFeb
36,000
26°225 mmMar
31,400
25°136 mmApr
23,400
24°70 mmMay
15,600
24°21 mmJun
9,000
24°10 mmJul
6,000
25°21 mmAug
6,000
26°60 mmSep
9,300
26°128 mmOct
15,000
26°178 mmNov
22,600
25°232 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 6,000 m³/s in the lowest month to 36,000 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

Beni River: the basin in numbers

919,833 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.
  • 7.3millionpeople live in the basin
  • 8/km²people per km²
  • 669maverage altitude of the basin
  • 1,591mmof rain a year (basin average)
  • 23.3°Caverage air temperature
  • 26%protected areas
  • 0.6%covered by lakes
  • 0.2km³held in reservoirs

What covers the basin

  • 67% Forest
  • 2% Cropland
  • 28% Pasture

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

Beni River: what you find on the way

  • 1WaterfallsCachoeira Guajará-Açu
  • 13Ferry piersPuerto Villazón, Costa Marques, Forte Príncipe da Beira and 10 more
  • 3Marinas
  • 1River beachesLimoeiro - Berçário de Tartarugas

From OpenStreetMap, within 3.0 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Beni River in our other atlases

What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.

  • 3waterfalls on the riverCascadyas

Waterfalls (3)

On the river, by Cascadyas

  1. Cachoeira das Bananeiraskm 1,052
  2. Cachoeira Pau Grandekm 1,071
  3. Cachoeira Lajeskm 1,075

Cascadyas is coming soonOpen Cascadyas ↗

From space

The source and the mouth, seen from orbit

Beni River: satellite view of the source
The source14 km across
Beni River: satellite view of the mouth
The mouth131 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

Beni River in pictures

Encuentro de los ríos Mamoré y Beni desde Brasil
EDMILSON CONSTANTINO · CC BY-SA 2.0
Atardecer en el río Beni
Gabvia · CC BY-SA 4.0
Beni River, Rurrenabaque, Bolivia
Arthur Chapman · CC BY 2.0
Cerdos salvajes - rio Beni
Jose Maria Eterovic · CC BY-SA 4.0

Where these numbers come from

Name, length, placesWikidata (Q142604) · 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
Our other atlasesCascadyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST

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