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River

Amper

185 km from source to mouth · Germany.

GermanyGermanyFlows into Isar

Follow the riverMonth by month

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

In numbers

Length

185km

Average flow

45m³/s

Basin

3,100km²

Drop

432m

from 839 m to 407 m

Country

1

The journey

From source to mouth

185 km of river and 42 stops on the way: 25 towns and cities on its banks, dams, bridges and the tributaries that feed it.

839 m407 m
Bavarian Alpsat 839 m0 km
Schleierfälle18 km
Achtributary45 km
Weilheim23,378 people54 km
Ammersee45 km²81 km
Fürstenfeldbruck37,666 people99 km
Dachau47,461 people118 km
Wasserkraftwerk Kranzberg145 km
Glonntributary146 km
Isarat 407 m185 km
050100150185 km
  1. 0 kmBavarian Alpsat 839 m
  2. 5 kmOberammergau5,344 people
  3. 10 kmSchleifmühlklamm
  4. 16 kmKraftwerk Kammerl
  5. 18 kmSchleierfälle
  6. 23 kmEchelsbacher Brücke
  7. 43 kmPeißenberg13,148 people
  8. 45 kmAchtributary
  9. 49 kmPolling3,228 people
  10. 54 kmWeilheim23,378 people
  11. 75 kmUtting am Ammersee3,983 people
  12. 79 kmSchondorf am Ammersee3,877 people
  13. 81 kmAmmersee45 km²
  14. 82 kmInning am Ammersee4,111 people
  15. 82 kmWindachtributary
  16. 88 kmGrafrath3,630 people
  17. 92 kmAmperkraftwerk (Schöngeising)
  18. 99 kmAmperbrücke
  19. 99 kmFürstenfeldbruck37,666 people
  20. 102 kmEmmering6,081 people
  21. 102 kmEichenau11,637 people
  22. 105 kmStarzelbachtributary
  23. 106 kmOlching23,978 people
  24. 108 kmGröbenzell19,110 people
  25. 112 kmBergkirchen6,955 people
  26. 114 kmGröbenbachtributary
  27. 114 kmMaisachtributary
  28. 118 kmDachau47,461 people
  29. 122 kmWürmtributary
  30. 122 kmHebertshausen5,121 people
  31. 131 kmHaimhausen4,680 people
  32. 135 kmFahrenzhausen4,466 people
  33. 140 kmThurnsberg42 people
  34. 145 kmWasserkraftwerk Kranzberg
  35. 146 kmGlonntributary
  36. 147 kmAllershausen4,734 people
  37. 161 kmZolling4,029 people
  38. 167 kmLangenbach3,755 people
  39. 176 kmMoosburg an der Isar20,107 people
  40. 177 kmMoosburg17,363 people
  41. 183 kmBruckberg5,071 people
  42. 184 kmAusgleichweiher1.3 km²
  43. 184 kmIsar-Stromschnelle Sieben Rippen bei Bruckbergerau
  44. 185 kmIsarat 407 m

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

River in Germany

At the mouth it carries 45 m³/s on average: an Olympic pool every 56 seconds. It drops from 839 m to 407 m, 2.3 m per kilometre on average. Its basin covers 3,100 km², about the size of LU. 2.6 million people live in it. Highest water: from April to May; lowest: from December to February. Its dams hold back little of its water (2.3% of a year's flow).

Read more on Wikipedia

Where to start

  • DachauLargest city on its banks · 47,461 people
  • Munich Airport (MUC)Nearest airport with scheduled flights, 28 km from the cityCar hire at MUC airport (Munich)Discover Cars · Affiliate link
  • On the water32 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe9 put-ins and rapids mapped (OpenStreetMap)
  • From June to SeptemberThe best months to visit

Amper, month by month

Highest water: from April to May

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

110
-2°50 mmJan
96
0°47 mmFeb
190
4°51 mmMar
190
8°63 mmApr
200
12°92 mmMay
170
16°114 mmJun
170
17°108 mmJul
170
17°103 mmAug
160
14°70 mmSep
150
8°54 mmOct
150
3°58 mmNov
130
0°55 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 96 m³/s in the lowest month to 200 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

Amper: the basin in numbers

7,100 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 2.3% of a year's flow.
  • 2.6millionpeople live in the basin
  • 363/km²people per km²
  • 816maverage altitude of the basin
  • 974mmof rain a year (basin average)
  • 6.9°Caverage air temperature
  • 36%protected areas
  • 2.2%covered by lakes
  • 0.1km³held in reservoirs

What covers the basin

  • 59% Forest
  • 19% Cropland
  • 19% Pasture
  • 13% 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

Amper: what you find on the way

  • 7DamsAbsturz and 6 more
  • 93WeirsAmmerstauwehr, Kammerl, Schnalzwehr and 90 more
  • 12WaterfallsSchleierfälle, Sinterterrassen, Wasserfall in der Reitnerbachklamm and 9 more
  • 5RapidsScheibum, Naturstufe and 3 more
  • 4Canoe put-ins
  • 11Boat rampsSegler-Gemeinschaft Utting e.V. and 10 more
  • 8Ferry piersDießen, Riederau, Holzhausen and 5 more
  • 9MarinasMTV Dießen, Dießner-Segel-Club e.V., Segelclub Landsberg e. V. and 6 more
  • 4Boat rentalsBootsverleih Fam. Ernst, Ringmaier Boote, Sailboat rental Hans Ernst and 1 more
  • 17River beachesHundebadeplatz, Badeplatz Lugenauer See, Polizeibad and 14 more

From OpenStreetMap, within 1.7 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Amper 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.

  • 3waterfalls on the riverCascadyas
  • 2lakes on its wayLakeyas
  • 237mountains at the sourcePeakyas

Waterfalls (3)

On the river, by Cascadyas

  1. Schleifmühlklammkm 9
  2. Schleierfällekm 17
  3. Isar-Stromschnelle Sieben Rippen bei Bruckbergeraukm 175

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (2)

Lakes it flows through, by Lakeyas

  1. Ammerseekm 77 · 81 m deep45km²
  2. Ausgleichweiherkm 1751.3km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (237)

Within 15 km of the source, by Peakyas

  1. Waxenstein14 km away · prominence 116 m2,277m
  2. Krottenkopf11 km away · prominence 1,156 m2,086m
  3. Geierköpfe14 km away2,161m
  4. Kreuzspitze11 km away · prominence 1,182 m2,185m
  5. Friederspitz8.9 km away2,049m
  6. Höllentorkopf14 km away2,150m
  7. Kramerspitz6.9 km away · prominence 780 m1,985m
  8. Osterfelderkopf14 km away2,057m

229 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Amper: satellite view of the source
The source14 km across
Amper: satellite view of the mouth
The mouth11 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

Amper in pictures

Maisach - Amper - Mündung
Wasquewhat · CC BY 4.0
Mündung Inninger Bach in Amper
Wasquewhat · CC BY-SA 3.0
Ammersee und Alpen
Armatus1995 · CC BY-SA 4.0
Alte Amper
Rossini08 · Public domain

Tributaries

Where it flows, and what flows into it

Tributaries (14)

Also: Würm, Ach, Maisach, Glonn, Windach, Linder, Gröbenbach, Kalterbach, Schwebelbach, Große Laine, Starzelbach, Talbach, Kolbenbach, Angerbach

Where these numbers come from

Name, length, placesWikidata (Q166301) · 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