Tarn river
Also known as: Le Tarn
The Tarn (also known as Le Tarn) is a European river flowing through France. As of 2026-10-07, the Tarn was flowing at about 40.858 m³/s at the Le Tarn à Villemur-sur-Tarn gauge.
- Canonical name
- Tarn
- Local names / aliases
- Le Tarn
- Countries
- France
- Maximum upstream drainage area
- 15,586 km²
- Mapped river length
- 320.1 km
- Gauging stations
- 11
- Latest measured discharge
- 40.858 m³/s (Le Tarn à Villemur-sur-Tarn, 2026-10-07)
Gauging stations on the Tarn
The following 11 gauging stations report discharge for the Tarn, ordered downstream (largest catchment first). Discharge is in cubic metres per second (m³/s).
| Station | Country | Discharge (m³/s) | Historical Comparison | Observed | Measurement | Data quality | Provider | Lat, Lon | Source |
|---|---|---|---|---|---|---|---|---|---|
| Le Tarn à Villemur-sur-Tarn | France | 40.858 | Below normal38% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.88, 1.496 | source | |
| Le Tarn à Montauban | France | 128.2 | Normal3% above the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.017, 1.349 | source | |
| Le Tarn à Villemade | France | 36.587 | Below normal42% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.085, 1.271 | source | |
| Le Tarn à Brousse-le-Château | France | 54.734 | Above normal27% above the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.998, 2.622 | source | |
| Le Tarn à Ambialet - (Pécotte - DREAL) | France | 55.442 | Normal26% above the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.932, 2.325 | source | |
| Le Tarn à Ambialet - Le Tarn à Marsal [Pécotte - EDF] | France | 29.516 | Below normal34% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.933, 2.324 | source | |
| Le Tarn à Albi | France | 41.946 | Much below normal34% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.932, 2.144 | source | |
| Le Tarn à Rabastens [Saint-Sulpice] | France | 93.426 | Normal11% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.786, 1.684 | source | |
| Le Tarn à Millau - Aval HG | France | 17.492 | — | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.09, 3.068 | source | |
| La Muze à Montjaux [Saint-Hippolyte] | France | 0.062 | Much below normal82% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.082, 2.922 | source | |
| Le Tarn à Mostuéjouls [La Muse] | France | 7.395 | Below normal53% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.21, 3.222 | source |
Related rivers
Data, sources & timestamps
Geometry is the HydroRIVERS network (HydroSHEDS): European reaches with at least 500 km² of upstream catchment, merged into chains between confluences. Flow direction comes from the network itself; river names are the canonical English label joined from provider metadata and Natural Earth, with local-language aliases retained.
Discharge is normalised observed streamflow from official national hydrology providers, measured where a gauge sits on the river and interpolated between gauges. Pale/estimated values are derived from drainage area × the local specific discharge of nearby gauges and are never presented as measurements.