River
Iriri River
1,100 km from source to mouth · Brazil.
BrazilFlows into Xingu River
In numbers
Length
1,100km
Average flow
2,800m³/s
Basin
130,000km²
Drop
196m
from 313 m to 117 m
Country
1
The journey
From source to mouth
1,100 km of river and 7 stops on the way: 0 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSerra do Cachimboat 313 m
- 531 kmCachoeira do Sol
- 567 kmCachoeira das Batas
- 582 kmCachoeira Manuel Jorge
- 666 kmCuruá Rivertributary
- 831 kmCachoeira Sem-Tripa
- 924 kmCorredeira Soledade
- 938 kmCachoeira do Cupim
- 1,100 kmXingu Riverat 117 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Brazil
At the mouth it carries 2,752 m³/s on average: 1.1 Olympic pools every second. It drops from 313 m to 117 m, 0.2 m per kilometre on average. Its basin covers 130,000 km², about the size of NI. 19,000 people live in it. Highest water: from February to April; lowest: from July to October. No large dam holds it back: it is one of the world's free-flowing rivers.
Where to start
- MedicilândiaLargest city on its banks · 31,975 people
- Altamira Interstate Airport (ATM)Nearest airport with scheduled flights, 74 km from the cityCar hire in SantaremDiscover Cars · Affiliate link↗
- From June to AugustThe best months to visit
Iriri River, month by month
Highest water: from February to April
Lowest water: from July to October. Best months to visit: from June to August.
From about 590 m³/s in the lowest month to 5,900 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
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The basin
Iriri River: the basin in numbers
142,352 km² of land send their water to this river. This is what lives on it.
- 19,000people live in the basin
- 0/km²people per km²
- 281maverage altitude of the basin
- 2,143mmof rain a year (basin average)
- 25.2°Caverage air temperature
- 88%protected areas
What covers the basin
- 97% 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.
Cross-checked with our atlases
Iriri 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.
6waterfalls on the riverCascadyas
Waterfalls (6)
On the river, by Cascadyas
- Cachoeira do Solkm 546
- Cachoeira das Bataskm 584
- Cachoeira Manuel Jorgekm 599
- Cachoeira Sem-Tripakm 856
- Corredeira Soledadekm 951
- Cachoeira do Cupimkm 966
Cascadyas is coming soonOpen Cascadyas ↗
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.
Tributaries
Where it flows, and what flows into it
It flows into
Xingu RiverBrazil1,640 km9,700 m³/sTributaries (8)
Also: Curuá River, Ipiranga River, Xinxim River, Carajarí River, Catete River, Chiché River, Iriri Novo River, Novo River
In the same basin
Brazil6,400 km209,000 m³/sRio NegroBrazil2,250 km30,000 m³/sMadeira RiverBrazil1,450 km31,200 m³/sMarañón River
Peru1,737 km16,700 m³/sUcayali RiverPeru1,460 km12,600 m³/sJapurá RiverBrazil2,820 km13,900 m³/sMamoré RiverBrazil1,930 km11,600 m³/sJuruá RiverBrazil3,100 km4,800 m³/sTapajós RiverBrazil1,930 km13,000 m³/sPutumayo RiverBrazil1,610 km7,000 m³/sWhere these numbers come from
| Name, length, places | Wikidata (Q1261515) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point 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 | Cascadyas — 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?
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