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River

Putumayo River

1,610 km from source to mouth · 4 countries.

BrazilPeruEcuadorColombiaBrazil, Peru, Ecuador and ColombiaFlows into Amazon River

Follow the riverMonth by month

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

In numbers

Length

1,610km

Average flow

7,000m³/s

Basin

123,000km²

Drop

171m

from 217 m to 46 m

Countries

4

The journey

From source to mouth

1,610 km of river and 7 stops on the way: 2 towns and cities on its banks, dams, bridges and the tributaries that feed it.

217 m46 m
Sourceat 217 m0 km
Güeppí Rivertributary102 km
Laguna Esperanza1.0 km²713 km
Igara Paraná Rivertributary839 km
Cotuhé Rivertributary1,230 km
Amazon Riverat 46 m1,610 km
05001,0001,610 km
  1. 0 kmSourceat 217 m
  2. 18 kmSan Miguel Rivertributary
  3. 102 kmGüeppí Rivertributary
  4. 171 kmPuerto Leguízamo20,045 people
  5. 697 kmSan Antonio del Estrecho8,000 people
  6. 713 kmLaguna Esperanza1.0 km²
  7. 839 kmIgara Paraná Rivertributary
  8. 1,230 kmCotuhé Rivertributary
  9. 1,610 kmAmazon Riverat 46 m

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

Tributary of the Amazon in South America

At the mouth it carries 7,000 m³/s on average: 2.8 Olympic pools every second. It drops from 217 m to 46 m, 0.1 m per kilometre on average. Its basin covers 123,000 km², about the size of ER. 714,000 people live in it. Highest water: from April to July. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • Puerto LeguízamoLargest city on its banks · 20,045 people
  • Tres De Mayo Airport (PUU)Nearest airport with scheduled flights, 206 km from the cityCar hire at RBR airport (Rio Branco)Discover Cars · Affiliate link
  • On the water8 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Putumayo River, month by month

Highest water: from April to July

Best months to visit: from May to September.

5,700
26°229 mmJan
5,700
26°222 mmFeb
6,700
26°283 mmMar
7,900
26°300 mmApr
9,000
26°300 mmMay
9,300
25°262 mmJun
8,700
25°246 mmJul
7,500
26°219 mmAug
6,300
26°216 mmSep
5,800
26°228 mmOct
5,400
27°220 mmNov
5,500
26°229 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 5,400 m³/s in the lowest month to 9,300 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

Putumayo River: the basin in numbers

120,994 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.
  • 714,000people live in the basin
  • 6/km²people per km²
  • 235maverage altitude of the basin
  • 2,932mmof rain a year (basin average)
  • 25.5°Caverage air temperature
  • 20%protected areas
  • 0.2%covered by lakes

What covers the basin

  • 86% Forest
  • 1% 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

Putumayo River: what you find on the way

  • 5Boat ramps
  • 1Ferry piersMuelle secundario
  • 2MarinasPuerto (secundario) Nariño, Puerto de Marcos
  • 26River beachesIsla Peña Colorada, Isla Peña Blanca, Isla Remolino and 23 more

From OpenStreetMap, within 2.4 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Putumayo 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.

  • 1lake on its wayLakeyas

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Laguna Esperanzakm 7351.0km²

Lakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Putumayo River: satellite view of the source
The source14 km across
Putumayo River: satellite view of the mouth
The mouth47 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

Putumayo River in pictures

Pescador Putumayo
Enochmartin · CC BY-SA 3.0
RIO PUTUMAYO - PUERTO ASÍS - HONG KONG (cropped)
Miguernesto · CC BY-SA 3.0
Regata en el rio putumayo
frankyaz · Public domain
Rio Putumayo en El ferri ( Puerto Asis)
Miguernesto · Public domain

Tributaries

Where it flows, and what flows into it

Tributaries (13)

Also: Cotuhé River, Igara Paraná River, San Miguel River, Guamués River, Pureté River, Güeppí River, Yaguas River, Río Caucayá, Algodón River, Angusilla River, Campuya River, Eré River, Yubineto River

Where these numbers come from

Name, length, placesWikidata (Q213782) · 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 atlasesLakeyas — 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