River
Sèvre Nantaise
142 km from source to mouth · France.
FranceFlows into Loire
In numbers
Length
142km
Average flow
9.5m³/s
Basin
2,360km²
Drop
196m
from 163 m to -33 m
Country
1
The journey
From source to mouth
142 km of river and 36 stops on the way: 31 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSecondignyat 163 m
- 7 kmMoncoutant3,029 people
- 16 kmLa Forêt-sur-Sèvre2,333 people
- 23 kmCerizay4,777 people
- 24 kmSaint-Mesmin1,896 people
- 34 kmLa Pommeraie-sur-Sèvre1,005 people
- 38 kmSaint-Amand-sur-Sèvre1,298 people
- 50 kmSaint-Malô-du-Bois1,291 people
- 56 kmSaint-Laurent-sur-Sèvre4,799 people
- 59 kmviaduc de Barbin
- 66 kmMortagne-sur-Sèvre6,428 people
- 75 kmSaint-Aubin-des-Ormeaux1,232 people
- 77 kmLe Longeron2,004 people
- 82 kmTiffauges1,437 people
- 83 kmCrûmetributary
- 84 kmTorfou2,023 people
- 91 kmLa Bruffière3,320 people
- 92 kmBoussay2,553 people
- 95 kmviaduc de la Doucinière
- 100 kmLa Bernardière1,252 people
- 100 kmCugand3,189 people
- 100 kmGétigné3,326 people
- 103 kmMoinetributary
- 104 kmPont de la Vallée, Clisson
- 104 kmClisson7,452 people
- 108 kmGorges3,087 people
- 108 kmSaint-Lumine-de-Clisson1,451 people
- 111 kmMouzillon2,385 people
- 114 kmLe Pallet2,574 people
- 115 kmMonnières1,659 people
- 121 kmLa Haie-Fouassière4,047 people
- 122 kmSaint-Fiacre-sur-Maine1,071 people
- 130 kmVertou22,921 people
- 133 kmLes Sorinières6,698 people
- 134 kmSaint-Sébastien-sur-Loire29,238 people
- 140 kmNantes327,734 people
- 141 kmRezé39,248 people
- 142 kmLoireat -33 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 9.5 m³/s on average: an Olympic pool every 263 seconds. It drops from 163 m to -33 m, 1.4 m per kilometre on average. Its basin covers 2,360 km², about the size of RE. 7.6 million people live in it. Highest water: from December to February; lowest: August. Its dams hold back little of its water (2.5% of a year's flow).
Where to start
- NantesLargest city on its banks · 327,734 people
- Nantes Atlantique Airport (NTE)Nearest airport with scheduled flights, 8 km from the cityCar hire at NTE airport (Nantes)Discover Cars · Affiliate link↗
- On the water45 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- Kayak and canoe2 put-ins and rapids mapped (OpenStreetMap)
- From May to SeptemberThe best months to visit
Sèvre Nantaise, month by month
Highest water: from December to February
Lowest water: August. Best months to visit: from May to September.
From about 330 m³/s in the lowest month to 1,600 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
Sèvre Nantaise: the basin in numbers
114,089 km² of land send their water to this river. This is what lives on it.
- 7.6millionpeople live in the basin
- 67/km²people per km²
- 289maverage altitude of the basin
- 751mmof rain a year (basin average)
- 10.5°Caverage air temperature
- 14%protected areas
- 0.2%covered by lakes
- 0.8km³held in reservoirs
What covers the basin
- 17% Forest
- 38% Cropland
- 22% 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
Sèvre Nantaise: what you find on the way
- 63WeirsChaussée de Thouet, Chaussée de Pilet, Chaussée de la Motte and 60 more
- 8LocksEcluse de Saint-Félix, Canal Saint-Félix and 6 more
- 1Waterfalls
- 1Rapids
- 1Canoe put-ins
- 31Boat rampsPort de la Cantrie, Cale de Beautour and 29 more
- 5Ferry piersBas-Chantenay, Trentemoult Sablières, Trentemoult Roquios and 2 more
- 4MarinasPort Saint-Félix, Ponton de Versailles, Port de Trentemoult and 1 more
From OpenStreetMap, within 2.4 km of the river. Not mapped is not the same as not there.
From space
The source and the mouth, seen from orbit


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
Sèvre Nantaise in pictures
Tributaries
Where it flows, and what flows into it
It flows into
LoireTributaries (6)
Also: Moine, Maine, Sanguèze, Crûme, Vertonne, Ouin
Nearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q598322) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
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.



