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River

Karun River

950 km from source to mouth · Iran.

IranIranFlows into Shatt al-Arab2nd longest in Iran

Follow the riverMonth by month

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

In numbers

Length

950km

Average flow

580m³/s

Basin

65,230km²

Drop

2,374m

from 2,374 m to 0 m

Country

1

The journey

From source to mouth

950 km of river and 20 stops on the way: 9 towns and cities on its banks, dams, bridges and the tributaries that feed it.

2,374 m0 m
Sourceat 2,374 m0 km
Lake Shahyoun73 km²342 km
Dezful264,709 people384 km
Dez Rivertributary590 km
Ahvaz841,145 people683 km
Shatt al-Arabat 0 m950 km
0200400600800950 km
  1. 0 kmSourceat 2,374 m
  2. 342 kmLake Shahyoun73 km²
  3. 384 kmDezful264,709 people
  4. 427 kmḨorr9,177 people
  5. 429 kmMīānrūd10,110 people
  6. 590 kmDez Rivertributary
  7. 616 kmVeys15,312 people
  8. 647 kmSheybān36,374 people
  9. 680 kmAhvaz Seventh Bridge
  10. 681 kmPol Siah
  11. 682 kmIsland Park Bridge (Ahvaz)
  12. 683 kmWhite Bridge
  13. 683 kmMoin al-Tojar Caravanserai
  14. 683 kmAhvaz841,145 people
  15. 683 kmAhvaz Fourth Bridge
  16. 684 kmQadir Bridge
  17. 684 kmAhvaz Silo
  18. 685 kmAhvaz Fifth Bridge
  19. 693 kmDarvīsheh11,820 people
  20. 694 kmKūt-e ‘Abdollāh56,252 people
  21. 923 kmKhorramshahr330,606 people
  22. 950 kmShatt al-Arabat 0 m

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

River in Iran

At the mouth it carries 575 m³/s on average: an Olympic pool every 4.3 seconds. It drops from 2,374 m to 0 m, 2.5 m per kilometre on average. Its basin covers 65,230 km², about the size of LT. 4.7 million people live in it. Highest water: from January to February; lowest: from July to October. Dams and reservoirs hold back a large share of its water (41% of a year's flow).

Read more on Wikipedia

Where to start

  • AhvazLargest city on its banks · 841,145 people
  • Qasem Soleimani International Airport (AWZ)Nearest airport with scheduled flights, 8 km from the city
  • On the water16 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From March to April and from October to NovemberThe best months to visit

Karun River, month by month

Highest water: from January to February

Lowest water: from July to October. Best months to visit: from March to April and from October to November.

3,100
10°65 mmJan
3,000
12°43 mmFeb
2,400
16°40 mmMar
1,400
22°32 mmApr
730
28°10 mmMay
270
32°0 mmJun
58
35°0 mmJul
39
34°0 mmAug
39
31°0 mmSep
49
25°5 mmOct
700
18°42 mmNov
1,800
12°54 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 39 m³/s in the lowest month to 3,100 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

Karun River: the basin in numbers

72,045 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 41% of a year's flow: dams shape its seasons.
  • 4.7millionpeople live in the basin
  • 65/km²people per km²
  • 1,417maverage altitude of the basin
  • 312mmof rain a year (basin average)
  • 16.8°Caverage air temperature
  • 5%protected areas
  • 0.3%covered by lakes
  • 9.6km³held in reservoirs

What covers the basin

  • 4% Forest
  • 18% Cropland
  • 62% Pasture
  • 2% 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

Karun River: what you find on the way

  • 5DamsRudbar Lorestan Dam, Bakhtiari Dam, Iran Dez dam and 2 more
  • 16Weirs
  • 10Boat ramps
  • 4Ferry piers
  • 1MarinasPersian Gulf Passenger Terminal
  • 1Boat rentals

From OpenStreetMap, within 2.3 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Karun 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
  • 29mountains at the sourcePeakyas

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Lake Shahyounkm 27173km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (29)

Within 15 km of the source, by Peakyas

  1. Kūh-e Eīlvak1.3 km away
  2. Zard Kūh11 km away
  3. Kūh-e Haft Tanān6.7 km away
  4. Kūh-e Vanak5.6 km away
  5. Kūh-e Shangī14 km away
  6. Kūh-e Kahnū7.1 km away
  7. Kūh-e Īl Vak3.9 km away
  8. Kūh-e Chehel Khesht4.5 km away

21 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Karun River: satellite view of the source
The source14 km across
Karun River: satellite view of the mouth
The mouth37 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

Karun River in pictures

Dammed portion of Karun River2
Geographer at English Wikipedia · CC BY-SA 4.0
Dammed portion of Karun River
Geographer · CC BY-SA 4.0
Ahvaz - Karoun - Ghadir Bridge - panoramio
Alireza Javaheri · CC BY 3.0
Boat In Karun
درفش کاویانی · CC BY-SA 3.0

Where these numbers come from

Name, length, placesWikidata (Q461557) · 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
Our other atlasesLakeyas, 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.

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