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River

Sarthe

314 km from source to mouth · France.

FranceFranceFlows into Maine

Follow the riverMonth by month

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

In numbers

Length

314km

Average flow

82m³/s

Basin

22,185km²

Drop

163m

from 163 m to 0 m

Country

1

The journey

From source to mouth

314 km of river and 68 stops on the way: 60 towns and cities on its banks, dams, bridges and the tributaries that feed it.

163 m0 m
Saint-Aquilin-de-Corbionat 163 m0 km
Alençon25,490 people50 km
Héloup899 people59 km
Assé-le-Boisne881 people90 km
Orne Saosnoisetributary134 km
Le Mans146,249 people154 km
La Suze-sur-Sarthe4,693 people185 km
Noyen-sur-Sarthe2,556 people201 km
Vègretributary233 km
Ervetributary243 km
Tiercé4,589 people285 km
Maineat 0 m314 km
0100200314 km
  1. 0 kmSaint-Aquilin-de-Corbionat 163 m
  2. 0 kmMoulins-la-Marche710 people
  3. 1 kmSoligny-la-Trappe627 people
  4. 3 kmChampeaux-sur-Sarthe159 people
  5. 4 kmSainte-Scolasse-sur-Sarthe582 people
  6. 8 kmBazoches-sur-Hoëne827 people
  7. 10 kmLa Mesnière276 people
  8. 10 kmLaleu362 people
  9. 11 kmCoulonges-sur-Sarthe480 people
  10. 12 kmBuré98 people
  11. 17 kmLe Mêle-sur-Sarthe659 people
  12. 20 kmSaint-Julien-sur-Sarthe672 people
  13. 20 kmBarville193 people
  14. 36 kmHauterive457 people
  15. 45 kmCerisé844 people
  16. 47 kmValframbert1,678 people
  17. 50 kmAlençon25,490 people
  18. 51 kmBriantetributary
  19. 53 kmSaint-Germain-du-Corbéis3,636 people
  20. 56 kmCondé-sur-Sarthe2,494 people
  21. 59 kmHéloup899 people
  22. 60 kmMieuxcé617 people
  23. 69 kmSaint-Pierre-des-Nids1,748 people
  24. 90 kmAssé-le-Boisne881 people
  25. 115 kmBeaumont-sur-Sarthe1,972 people
  26. 123 kmSaint-Jean-d'Assé1,790 people
  27. 132 kmSainte-Jamme-sur-Sarthe1,950 people
  28. 133 kmMontbizot1,841 people
  29. 134 kmOrne Saosnoisetributary
  30. 137 kmLa Guierche1,300 people
  31. 138 kmLa Bazoge3,796 people
  32. 143 kmNeuville-sur-Sarthe2,463 people
  33. 148 kmSaint-Saturnin2,774 people
  34. 149 kmLa Chapelle-Saint-Aubin2,256 people
  35. 149 kmSaint-Pavace2,007 people
  36. 151 kmCoulaines8,121 people
  37. 154 kmLe Mans146,249 people
  38. 156 kmHuisnetributary
  39. 160 kmAllonnes10,739 people
  40. 166 kmArnage5,445 people
  41. 169 kmSpay2,808 people
  42. 173 kmFillé1,562 people
  43. 174 kmGuécélard3,202 people
  44. 181 kmRoëzé-sur-Sarthe2,514 people
  45. 185 kmLa Suze-sur-Sarthe4,693 people
  46. 190 kmChemiré-le-Gaudin998 people
  47. 201 kmNoyen-sur-Sarthe2,556 people
  48. 210 kmMalicorne-sur-Sarthe1,854 people
  49. 224 kmParcé-sur-Sarthe1,950 people
  50. 228 kmAvoise594 people
  51. 233 kmVègretributary
  52. 237 kmJuigné-sur-Sarthe1,141 people
  53. 239 kmSolesmes1,240 people
  54. 243 kmErvetributary
  55. 243 kmSablé-sur-Sarthe12,326 people
  56. 244 kmTaudetributary
  57. 253 kmSaint-Denis-d'Anjou1,495 people
  58. 257 kmPrécigné2,877 people
  59. 278 kmJuvardeil833 people
  60. 281 kmÉtriché1,600 people
  61. 285 kmTiercé4,589 people
  62. 295 kmBriollay3,225 people
  63. 297 kmSoulaire-et-Bourg1,467 people
  64. 298 kmLoirtributary
  65. 301 kmCantenay-Épinard2,415 people
  66. 303 kmÉcouflant4,749 people
  67. 311 kmAngers159,022 people
  68. 313 kmMaine-et-Loire833,776 people
  69. 313 kmLac de Maine0.9 km²
  70. 314 kmMaineat 0 m

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

River in France

At the mouth it carries 82 m³/s on average: an Olympic pool every 30 seconds. It drops from 163 m to 0 m, 0.5 m per kilometre on average. Its basin covers 22,185 km², about the size of BZ. 1.5 million people live in it. Highest water: from December to February. No large dam holds it back: it is one of the world's free-flowing rivers.

Read more on Wikipedia

Where to start

  • Maine-et-LoireLargest city on its banks · 833,776 people
  • Nantes Atlantique Airport (NTE)Nearest airport with scheduled flights, 83 km from the cityCar hire at NTE airport (Nantes)Discover Cars · Affiliate link
  • On the water64 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Sarthe, month by month

Highest water: from December to February

Best months to visit: from May to September.

300
4°68 mmJan
270
5°59 mmFeb
220
8°54 mmMar
160
10°49 mmApr
120
13°57 mmMay
86
17°48 mmJun
63
18°46 mmJul
54
18°52 mmAug
79
16°56 mmSep
130
12°62 mmOct
220
7°72 mmNov
270
5°69 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 54 m³/s in the lowest month to 300 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

Sarthe: the basin in numbers

22,108 km² of land send their water to this river. This is what lives on it.

Free-flowingDams upstream can hold only 0.0% of a year's flow: the river still keeps its natural rhythm.
  • 1.5millionpeople live in the basin
  • 66/km²people per km²
  • 128maverage altitude of the basin
  • 698mmof rain a year (basin average)
  • 10.7°Caverage air temperature
  • 17%protected areas
  • 0.1%covered by lakes

What covers the basin

  • 3% Forest
  • 50% Cropland
  • 18% 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

Sarthe: what you find on the way

  • 21Dams
  • 84WeirsBarrage des Forges, Barrage de Trotté, Barrage d'Antoigné and 81 more
  • 40LocksLa Sarthe, Écluse de Fercé, Écluse de Malicorne and 37 more
  • 1Waterfalls
  • 46Boat rampsCale de Mise à l'Eau, canoe kayak (Passage du barrage) and 44 more
  • 2Ferry piers
  • 12MarinasLe Port du Mans, Port du Houssay, Halte Fluviale and 9 more
  • 4Boat rentalsAlpes Mancelles Aventures, Aventure Nautique, Anjou Navigation and 1 more
  • 1River beachesPlage des Sablières

From OpenStreetMap, within 2.0 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Sarthe 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

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Lac de Mainekm 2570.9km²

Lakeyas is coming soonOpen Lakeyas ↗

From space

The source and the mouth, seen from orbit

Sarthe: satellite view of the source
The source14 km across
Sarthe: satellite view of the mouth
The mouth20 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

Sarthe in pictures

72228-vieux moulin
Touzé Eric · CC BY-SA 3.0
River Sarthe between Morannes and Chemiré-sur-Sarthe
Own work · CC BY-SA 3.0
Châteauneuf-sur-sarthe riviere
Petit Angevin · CC BY-SA 4.0
F0953 Angers confluence Mayenne et Sarthe rwk
Mbzt · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (22)

Also: Huisne, Vaige, Erve, Vègre, Orne Saosnoise, Orthe, Sarthon, Briante, Fessard, Orne champenoise, Bienne, Gée, Merdereau, Hoëne, Taude, Vaudelle, Rhonne, Roule Crottes, Vézanne, Orthon, Voutonne

Where these numbers come from

Name, length, placesWikidata (Q736600) · 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 — 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