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River

Hérault

148 km from source to mouth · France.

FranceFranceFlows into Mediterranean Sea

Follow the riverMonth by month

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

In numbers

Length

148km

Average flow

44m³/s

Basin

2,550km²

Drop

195m

from 195 m to 0 m

Country

1

The journey

From source to mouth

148 km of river and 28 stops on the way: 20 towns and cities on its banks, dams, bridges and the tributaries that feed it.

195 m0 m
Mont Aigoualat 195 m0 km
Vistributary19 km
Brissac615 people32 km
Pont de Saint-Etienne d'Issensac38 km
Pont du Diable, Hérault70 km
Lerguetributary89 km
Ruisseau Dourbietributary89 km
Pézenas8,647 people117 km
Saint-Thibéry3,132 people125 km
Mediterranean Seaat 0 m148 km
050100148 km
  1. 0 kmMont Aigoualat 195 m
  2. 11 kmSumène1,620 people
  3. 19 kmVistributary
  4. 19 kmRieutordtributary
  5. 21 kmGanges3,997 people
  6. 22 kmCazilhac1,257 people
  7. 24 kmLaroque1,265 people
  8. 29 kmSaint-Bauzille-de-Putois1,283 people
  9. 32 kmBrissac615 people
  10. 38 kmPont de Saint-Etienne d'Issensac
  11. 70 kmPont du Diable, Hérault
  12. 71 kmSaint-Jean-de-Fos1,745 people
  13. 74 kmAniane2,362 people
  14. 82 kmGignac Bridge
  15. 82 kmGignac6,651 people
  16. 84 kmSaint-André-de-Sangonis4,270 people
  17. 89 kmLerguetributary
  18. 89 kmRuisseau Dourbietributary
  19. 98 kmAspiran1,311 people
  20. 103 kmPaulhan3,232 people
  21. 110 kmMontagnac3,362 people
  22. 112 kmLézignan-la-Cèbe1,138 people
  23. 117 kmPézenas8,647 people
  24. 119 kmCastelnau-de-Guers1,013 people
  25. 125 kmSaint-Thibéry3,132 people
  26. 126 kmRoman Bridge
  27. 128 kmFlorensac4,428 people
  28. 134 kmBessan4,531 people
  29. 142 kmAgde23,001 people
  30. 148 kmMediterranean Seaat 0 m

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

River in southern France

At the mouth it carries 44 m³/s on average: an Olympic pool every 57 seconds. It drops from 195 m to 0 m, 1.3 m per kilometre on average. Its basin covers 2,550 km², about the size of RE. 158,000 people live in it. Highest water: from October to January; lowest: from July to August. Its dams hold back little of its water (6.2% of a year's flow).

Read more on Wikipedia

Where to start

  • AgdeLargest city on its banks · 23,001 people
  • Béziers Vias airport (BZR)Nearest airport with scheduled flights, 10 km from the cityCar hire at BZR airport (Béziers)Discover Cars · Affiliate link
  • On the water21 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Hérault, month by month

Highest water: from October to January

Lowest water: from July to August. Best months to visit: from May to September.

130
6°64 mmJan
110
7°53 mmFeb
110
10°67 mmMar
79
13°52 mmApr
60
16°54 mmMay
37
20°44 mmJun
13
22°25 mmJul
19
22°45 mmAug
58
19°69 mmSep
130
15°91 mmOct
120
10°60 mmNov
130
7°68 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 13 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

Hérault: the basin in numbers

2,621 km² of land send their water to this river. This is what lives on it.

Lightly regulatedReservoirs can hold 6.2% of a year's flow.
  • 158,000people live in the basin
  • 60/km²people per km²
  • 367maverage altitude of the basin
  • 734mmof rain a year (basin average)
  • 12.5°Caverage air temperature
  • 17%protected areas
  • 0.2%covered by lakes
  • 0.1km³held in reservoirs

What covers the basin

  • 50% Forest
  • 20% Cropland
  • 17% Pasture
  • 3% 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

Hérault: what you find on the way

  • 10DamsBarrage de Belbezet and 9 more
  • 31WeirsBarrage Bertrand, Barrage de la Meuse, Barrage Bladier-Ricard and 28 more
  • 3LocksCanal du Midi
  • 10WaterfallsLa Sablette, Cascade d'Aigues-Folles and 8 more
  • 9Boat rampsCale de mise à l'eau Canoê and 8 more
  • 4Ferry piersPasseur Mimi and 3 more
  • 2MarinasLa Vallée des Moulins, Port d'Agde
  • 6Boat rentalsBase Nautique de Laroque, Canoë Le Moulin Aubanel, Canoe Rapido and 3 more
  • 2River beachesPlage de la Tamarissière, Plage du Grau d'Agde

From OpenStreetMap, within 1.5 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Hérault 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.

  • 4beaches at the mouth and on the banksCoastya
  • 20mountains at the sourcePeakyas

Beaches (4)

At the mouth (25 km) and on the banks, by Coastya

  1. Marseillan Plage9.6 km away22.0°C
  2. Plage du Lazaret22 km away22.0°C
  3. Plage de la Corniche22 km away22.0°C
  4. Plage des Quilles21 km away22.0°C

Open Coastya ↗

Mountains at the source (20)

Within 15 km of the source, by Peakyas

  1. Mont Aigoual2.8 km away · prominence 730 m1,567m
  2. Pic de Barette7.1 km away1,324m
  3. pic de Barrette7.2 km away1,324m
  4. Les Trois Quilles12 km away1,259m
  5. Pic Saint-Guiral13 km away1,193m
  6. La Rose des Vents7.1 km away1,130m
  7. Pic de Borgne11 km away946m
  8. Montagne du Lingas10 km away

12 more on PeakyasOpen Peakyas ↗

From space

The source and the mouth, seen from orbit

Hérault: satellite view of the source
The source14 km across
Hérault: satellite view of the mouth
The mouth10 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

Hérault in pictures

Bridge and aqueduct over Hérault river near Saint-Guilhem-le-Désert, seen from Pont du Diable, Hérault, France - 20050308
Stefanobasta (Stefan Fink) . · Public domain
177B Déversoir de l'Hérault entre Causse-de-la-Selle et Saint-Martin-de-Londres Canoës
Henri MOREAU · CC BY-SA 4.0
Bélarga barrage Hérault
Fagairolles 34 · CC BY-SA 4.0
Bélarga Hérault
Fagairolles 34 · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (11)

Also: Vis, Lergue, Arre, Buèges, Boyne, Peyne, Rieutord, Thongue, Lamalou, Alzon, Ruisseau Dourbie

Where these numbers come from

Name, length, placesWikidata (Q81773) · 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 atlasesCoastya, 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