River
Chubut River
810 km from source to mouth · Argentina.
ArgentinaFlows into Atlantic Ocean6th longest in Argentina
In numbers
Length
810km
Average flow
30m³/s
Basin
53,801km²
Drop
714m
from 717 m to 3 m
Country
1
The journey
From source to mouth
810 km of river and 3 stops on the way: 1 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 717 m
- 106 kmChico Rivertributary
- 610 kmEmbalse Florentino Ameghino30 km²
- 750 kmRawson26,335 people
- 810 kmAtlantic Oceanat 3 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Argentina
At the mouth it carries 30 m³/s on average: an Olympic pool every 83 seconds. It drops from 717 m to 3 m, 0.9 m per kilometre on average. Its basin covers 53,801 km², about the size of HR. 165,000 people live in it. Highest water: from June to July; lowest: from December to March. Dams and reservoirs hold back a large share of its water (25% of a year's flow).
Where to start
- RawsonLargest city on its banks · 26,335 people
- Almirante Marco Andres Zar Airport (REL)Nearest airport with scheduled flights, 17 km from the cityCar hire at REL airport (Rawson)Discover Cars · Affiliate link↗
- From November to MarchThe best months to visit
Chubut River, month by month
Highest water: from June to July
Lowest water: from December to March. Best months to visit: from November to March.
From about 130 m³/s in the lowest month to 370 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
Chubut River: the basin in numbers
95,222 km² of land send their water to this river. This is what lives on it.
- 165,000people live in the basin
- 2/km²people per km²
- 655maverage altitude of the basin
- 253mmof rain a year (basin average)
- 9.2°Caverage air temperature
- 1.3%covered by lakes
- 1.9km³held in reservoirs
What covers the basin
- 4% Forest
- 77% 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
Chubut River: what you find on the way
- 8Weirs
- 1Waterfalls
From OpenStreetMap, within 2.4 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Chubut 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
4beaches at the mouth and on the banksCoastya
2mountains at the sourcePeakyas
Lakes and reservoirs (1)
Lakes it flows through, by Lakeyas
- Embalse Florentino Ameghinokm 61630km²
Lakeyas is coming soonOpen Lakeyas ↗
Beaches (4)
At the mouth (25 km) and on the banks, by Coastya
- Playa Magagna6.2 km away17.0°C
- Playa Santa Isabel11 km away17.0°C
- Playa Biarritz19 km away16.6°C
- Playa los Palos3.4 km away17.0°C
Mountains at the source (2)
Within 15 km of the source, by Peakyas
- Sierra del Maitén11 km away
- Cerro Negro8.9 km away
From space
The source and the mouth, seen from orbit


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
Chubut River in pictures
Tributaries
Where it flows, and what flows into it
Tributaries (4)
Also: Chico River, Chico River, Tecka River, río Gualjaina
Where these numbers come from
| Name, length, places | Wikidata (Q955354) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Lakeyas, Coastya, Peakyas — 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.



