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River

Traun

153 km from source to mouth · Austria.

AustriaAustriaFlows into Danube4th longest in Austria

Follow the riverMonth by month

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

In numbers

Length

153km

Average flow

140m³/s

Basin

4,277km²

Drop

453m

from 699 m to 246 m

Country

1

The journey

From source to mouth

153 km of river and 45 stops on the way: 26 towns and cities on its banks, dams, bridges and the tributaries that feed it.

699 m246 m
Salzkammergut and Upper Austria Alpsat 699 m0 km
Mühlbach24 km
Hallstätter See7.8 km²30 km
Hohenzollern Wasserfall45 km
Ebensee4,125 people62 km
Traunsee23 km²75 km
Traunfall88 km
Agertributary98 km
Almtributary108 km
Wels16,857 people118 km
Sipbachtributary138 km
Danubeat 246 m153 km
050100153 km
  1. 0 kmSalzkammergut and Upper Austria Alpsat 699 m
  2. 3 kmGrundlsee3.4 km²
  3. 7 kmAltausseer See1.8 km²
  4. 8 kmMercedes-Brücke
  5. 9 kmKlamm und Wasserfälle am Teichenbach
  6. 24 kmMühlbach
  7. 28 kmGosaubachtributary
  8. 30 kmHallstätter See7.8 km²
  9. 43 kmElisabethbrücke, Bad Ischl
  10. 45 kmKreuzstein
  11. 45 kmHohenzollern Wasserfall
  12. 62 kmEbensee4,125 people
  13. 73 kmAltmünster4,496 people
  14. 75 kmTraunsee23 km²
  15. 75 kmTraunbrücke
  16. 75 kmGmunden13,191 people
  17. 77 kmPinsdorf3,849 people
  18. 83 kmLaakirchen9,861 people
  19. 88 kmTraunfallbrücke
  20. 88 kmTraunfall
  21. 98 kmStadl-Traun3,643 people
  22. 98 kmAgertributary
  23. 100 kmLambach3,279 people
  24. 108 kmAlmtributary
  25. 111 kmGunskirchen3,778 people
  26. 113 kmWimpassing5,748 people
  27. 115 kmLichtenegg6,163 people
  28. 117 kmrailway bridge Wels - Thalheim
  29. 117 kmBernardin4,300 people
  30. 117 kmLaahen4,836 people
  31. 117 kmThalheim bei Wels4,294 people
  32. 118 kmOberhaid5,100 people
  33. 118 kmWels16,857 people
  34. 118 kmWÖS5,000 people
  35. 126 kmMarchtrenk8,394 people
  36. 135 kmOedt3,046 people
  37. 137 kmHaid7,424 people
  38. 138 kmTraun25,345 people
  39. 138 kmSipbachtributary
  40. 139 kmSankt Dionysen3,012 people
  41. 139 kmLangholzfeld3,622 people
  42. 140 kmAnsfelden18,251 people
  43. 141 kmSankt Martin6,984 people
  44. 141 kmDoppl3,136 people
  45. 150 kmKremstributary
  46. 150 kmSteyregg4,889 people
  47. 153 kmDanubeat 246 m

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

River in Austria

At the mouth it carries 135 m³/s on average: an Olympic pool every 19 seconds. It drops from 699 m to 246 m, 3.0 m per kilometre on average. Its basin covers 4,277 km², about the size of CV. 11.9 million people live in it. Highest water: from March to May; lowest: from December to February. Its dams hold back little of its water (3.9% of a year's flow).

Read more on Wikipedia

Where to start

  • TraunLargest city on its banks · 25,345 people
  • Linz-Hörsching Airport (LNZ)Nearest airport with scheduled flights, 4 km from the cityCar hire at LNZ airport (Linz)Discover Cars · Affiliate link
  • On the water72 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe2 put-ins and rapids mapped (OpenStreetMap)
  • From August to SeptemberThe best months to visit

Traun, month by month

Highest water: from March to May

Lowest water: from December to February. Best months to visit: from August to September.

1,100
-2°68 mmJan
1,000
-1°70 mmFeb
2,000
4°70 mmMar
2,100
8°81 mmApr
2,100
13°106 mmMay
1,700
16°137 mmJun
1,800
18°144 mmJul
1,800
17°120 mmAug
1,600
14°82 mmSep
1,500
8°67 mmOct
1,500
3°73 mmNov
1,300
0°81 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 1,000 m³/s in the lowest month to 2,100 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

Traun: the basin in numbers

83,594 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 3.9% of a year's flow.
  • 11.9millionpeople live in the basin
  • 143/km²people per km²
  • 824maverage altitude of the basin
  • 980mmof rain a year (basin average)
  • 6.5°Caverage air temperature
  • 25%protected areas
  • 0.7%covered by lakes
  • 2%permafrost
  • 1.9km³held in reservoirs

What covers the basin

  • 54% Forest
  • 23% Cropland
  • 22% Pasture
  • 6% 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

Traun: what you find on the way

  • 27DamsKraftwerk Traun-Pucking, Hochwasserschutzdamm and 25 more
  • 220WeirsSeeklause Steeg, Holzrechen, Goiserer Polster and 217 more
  • 27WaterfallsZimitzbach Wasserfall, Schleierfall, Hohenzoller waterfall and 24 more
  • 2Rapids
  • 35Boat ramps
  • 22Ferry piersGössl, Pavillon, Seehotel and 19 more
  • 10MarinasSteirischer Yachtclub, Segelclub Ebensee, Segelclub Altmünster and 7 more
  • 5Boat rentalsBootsvermietung Hillbrand, Bootsvermietung Schwarzmayr, Bootsvermietung Loidl and 2 more
  • 9River beachesFKK-Badestrand, Badeplatz Bettelumkehr, Naturbadeplatz Kronhütter and 6 more

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

Cross-checked with our atlases

Traun 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.

  • 4waterfalls on the riverCascadyas
  • 4lakes on its wayLakeyas
  • 162mountains at the sourcePeakyas

Waterfalls (4)

On the river, by Cascadyas

  1. Klamm und Wasserfälle am Teichenbachkm 9
  2. Mühlbachkm 24
  3. Hohenzollern Wasserfallkm 44
  4. Traunfallkm 87

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (4)

Lakes it flows through, by Lakeyas

  1. Grundlseekm 3 · 64 m deep3.4km²
  2. Altausseer Seekm 71.8km²
  3. Hallstätter Seekm 30 · 125 m deep7.8km²
  4. Traunseekm 74 · 191 m deep23km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (162)

Within 15 km of the source, by Peakyas

  1. Großer Priel11 km away · prominence 1,700 m2,515m
  2. Spitzmauer9.9 km away2,446m
  3. Schermberg9.7 km away2,396m
  4. Großer Hochkasten7.9 km away2,389m
  5. Rotgschirr6.6 km away2,270m
  6. Feuertalberg6.9 km away2,376m
  7. Temlberg8.6 km away2,331m
  8. Kleiner Hochkasten8.3 km away2,352m

154 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Traun: satellite view of the source
The source14 km across
Traun: satellite view of the mouth
The mouth39 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

Traun in pictures

0846-0847 - Obertraun - Looking west
Andrew Bossi · CC BY-SA 2.5
Lauffen, de Traun foto4 2011-07-29 10.14
Michielverbeek · CC BY-SA 3.0
Linz Ebelsberg Ebelsberger Traunbrücke B1-5838
Isiwal · CC BY-SA 4.0
Linz Ebelsberg Ebelsberger Traunbrücke B1-5842
Isiwal · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (12)

Also: Ager, Krems, Alm, Rote Traun, Weiße Traun, Ischl, Rettenbach, Sipbach, Aiterbach, Grundlseer Traun, Welser Mühlbach, Gosaubach

Where these numbers come from

Name, length, placesWikidata (Q664341) · 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 atlasesCascadyas, Lakeyas, 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