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River

Yonne

292 km from source to mouth · France.

FranceFranceFlows into Seine

Follow the riverMonth by month

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

In numbers

Length

292km

Average flow

100m³/s

Basin

10,887km²

Drop

274m

from 320 m to 46 m

Country

1

The journey

From source to mouth

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

320 m46 m
Mont Preneleyat 320 m0 km
Auxoistributary50 km
Clamecy3,544 people88 km
Crain410 people101 km
Curetributary139 km
Auxerre35,097 people163 km
Sereintributary186 km
Joigny9,016 people202 km
Sens27,106 people242 km
Seineat 46 m292 km
0100200292 km
  1. 0 kmMont Preneleyat 320 m
  2. 0 kmChâteau-Chinon (Campagne)554 people
  3. 0 kmArleuf637 people
  4. 14 kmLac de Pannecière3.3 km²
  5. 38 kmCervon588 people
  6. 45 kmCorbigny1,327 people
  7. 50 kmAuxoistributary
  8. 84 kmArmes266 people
  9. 88 kmClamecy3,544 people
  10. 101 kmCrain410 people
  11. 111 kmChâtel-Censoir561 people
  12. 135 kmBazarnes422 people
  13. 139 kmCuretributary
  14. 143 kmIrancy247 people
  15. 146 kmVincelles913 people
  16. 148 kmSaint-Bris-le-Vineux1,024 people
  17. 149 kmEscolives-Sainte-Camille719 people
  18. 152 kmChamps-sur-Yonne1,513 people
  19. 157 kmAugy954 people
  20. 163 kmAuxerre35,097 people
  21. 171 kmMonéteau4,114 people
  22. 172 kmBaulchetributary
  23. 174 kmGurgy1,723 people
  24. 177 kmAppoigny3,114 people
  25. 178 kmChemilly-sur-Yonne887 people
  26. 182 kmBeaumont618 people
  27. 184 kmBassou869 people
  28. 184 kmBonnard909 people
  29. 186 kmSereintributary
  30. 187 kmCheny2,206 people
  31. 188 kmCharmoy1,104 people
  32. 189 kmArmançontributary
  33. 189 kmMigennes6,688 people
  34. 191 kmÉpineau-les-Voves708 people
  35. 192 kmLaroche-Saint-Cydroine1,185 people
  36. 195 kmChamplay733 people
  37. 202 kmJoigny9,016 people
  38. 207 kmCézy1,070 people
  39. 208 kmSaint-Aubin-sur-Yonne434 people
  40. 214 kmSaint-Julien-du-Sault2,173 people
  41. 217 kmArmeau753 people
  42. 224 kmVilleneuve-sur-Yonne5,135 people
  43. 227 kmPassy324 people
  44. 228 kmMarsangy870 people
  45. 232 kmVéron1,849 people
  46. 232 kmÉtigny747 people
  47. 237 kmGron1,288 people
  48. 239 kmVannetributary
  49. 241 kmParon4,834 people
  50. 242 kmSens27,106 people
  51. 246 kmSaint-Denis-lès-Sens628 people
  52. 247 kmCourtois-sur-Yonne783 people
  53. 250 kmCuy861 people
  54. 254 kmGisy-les-Nobles545 people
  55. 257 kmPont-sur-Yonne3,391 people
  56. 258 kmMichery1,078 people
  57. 260 kmVillemanoche667 people
  58. 261 kmOreusetributary
  59. 261 kmSerbonnes716 people
  60. 267 kmCourlon-sur-Yonne1,183 people
  61. 270 kmChampigny2,128 people
  62. 270 kmVinneuf1,536 people
  63. 271 kmChaumont645 people
  64. 276 kmVilleblevin1,795 people
  65. 278 kmVilleneuve-la-Guyard3,455 people
  66. 283 kmMarolles-sur-Seine1,774 people
  67. 286 kmCannes-Écluse2,742 people
  68. 291 kmMontereau-Fault-Yonne22,279 people
  69. 291 kmVarennes-sur-Seine3,748 people
  70. 292 kmSeineat 46 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 105 m³/s on average: an Olympic pool every 24 seconds. It drops from 320 m to 46 m, 0.9 m per kilometre on average. Its basin covers 10,887 km², about the size of XK. 419,000 people live in it. Highest water: from December to February. Its dams hold back little of its water (5.4% of a year's flow).

Read more on Wikipedia

Where to start

  • AuxerreLargest city on its banks · 35,097 people
  • Chalons Vatry airport (XCR)Nearest airport with scheduled flights, 118 km from the cityCar hire at ORY airport (Paris)Discover Cars · Affiliate link
  • On the water46 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Yonne, month by month

Highest water: from December to February

Best months to visit: from May to September.

130
3°55 mmJan
120
4°51 mmFeb
87
8°46 mmMar
49
10°43 mmApr
49
14°66 mmMay
48
17°62 mmJun
36
19°51 mmJul
27
19°60 mmAug
31
16°56 mmSep
54
11°54 mmOct
83
7°56 mmNov
110
4°58 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 27 m³/s in the lowest month to 130 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

Yonne: the basin in numbers

10,790 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 5.4% of a year's flow.
  • 419,000people live in the basin
  • 39/km²people per km²
  • 260maverage altitude of the basin
  • 735mmof rain a year (basin average)
  • 10.3°Caverage air temperature
  • 15%protected areas
  • 0.2%covered by lakes
  • 0.1km³held in reservoirs

What covers the basin

  • 15% Forest
  • 41% Cropland
  • 15% Pasture
  • 1% 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

Yonne: what you find on the way

  • 27DamsBarrage du Moulin Blondelot, Barrage de Pannecière Chaumard, Barrage à Aiguilles and 24 more
  • 83WeirsDéversoir de Baseville, Pertuis des Bouchets, Seuil de Rosoy and 80 more
  • 285LocksCanal du Nivernais and 284 more
  • 25Boat rampsponton de mise à l'eau and 24 more
  • 17MarinasPort de Plaisance de Corbigny, Port de Plaisance de Chaumot Chitry les Mines, Port de Plaisance de Tannay and 14 more
  • 4Boat rentalsLocaboat, Le Boat, Club de Kayak and 1 more
  • 5River beachesBase de loisirs de la Tambourinette, River bathing area, Migennes Plage and 2 more

From OpenStreetMap, within 1.8 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Yonne 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
  • 10mountains at the sourcePeakyas

Lakes and reservoirs (1)

Lakes it flows through, by Lakeyas

  1. Lac de Pannecièrekm 11 · 48 m deep3.3km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (10)

Within 15 km of the source, by Peakyas

  1. Morvan14 km away901m
  2. Haut-Folin4.8 km away901m
  3. Mont Beuvray4.1 km away821m
  4. Mont Préneley0.5 km away855m
  5. Bois de la Loge3.6 km away818m
  6. Mont Touleur8.6 km away582m
  7. Mont Dône15 km away513m
  8. Mont Charlet12 km away360m

2 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Yonne: satellite view of the source
The source14 km across
Yonne: satellite view of the mouth
The mouth14 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

Yonne in pictures

Sens - Pont d'Yonne - 2
Benjamin Smith · CC BY-SA 4.0
Armeau-FR-89-Yonne au soleil couchant-01
François GOGLINS · CC BY-SA 4.0
Armeau-FR-89-Yonne au soleil couchant-2
François GOGLINS · CC BY-SA 4.0
Bord de l'Yonne à Champlay
VVVCFFrance · CC0

Tributaries

Where it flows, and what flows into it

Tributaries (16)

Also: Cure, Serein, Vanne, Beuvron, Vrin, Tholon, Anguison, Auxois, Oreuse, Ravillon, Druyes (river), Baulche, Armance, Rû de Sinotte, Rû Saint-Ange

Where these numbers come from

Name, length, placesWikidata (Q213967) · 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