**Archived extract:** 2026-10-08 (UTC). Frozen data; observation dates are shown as captured. [View the current site](/)

# 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 normal — 38% below the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.88, 1.496 | [source](https://www.hydro.eaufrance.fr/stationhydro/O493101001/series) |
| Le Tarn à Montauban | France | 128.2 | Normal — 3% above the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.017, 1.349 | [source](https://www.hydro.eaufrance.fr/stationhydro/O494101001/series) |
| Le Tarn à Villemade | France | 36.587 | Below normal — 42% below the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.085, 1.271 | [source](https://www.hydro.eaufrance.fr/stationhydro/O499103001/series) |
| Le Tarn à Brousse-le-Château | France | 54.734 | Above normal — 27% above the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.998, 2.622 | [source](https://www.hydro.eaufrance.fr/stationhydro/O360102001/series) |
| Le Tarn à Ambialet - (Pécotte - DREAL) | France | 55.442 | Normal — 26% above the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.932, 2.325 | [source](https://www.hydro.eaufrance.fr/stationhydro/O384000201/series) |
| Le Tarn à Ambialet - Le Tarn à Marsal \[Pécotte - EDF\] | France | 29.516 | Below normal — 34% below the historic median | 2026-10-06 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.933, 2.324 | [source](https://www.hydro.eaufrance.fr/stationhydro/O384000202/series) |
| Le Tarn à Albi | France | 41.946 | Much below normal — 34% below the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.932, 2.144 | [source](https://www.hydro.eaufrance.fr/stationhydro/O400101001/series) |
| Le Tarn à Rabastens \[Saint-Sulpice\] | France | 93.426 | Normal — 11% below the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.786, 1.684 | [source](https://www.hydro.eaufrance.fr/stationhydro/O408101001/series) |
| Le Tarn à Millau - Aval HG | France | 17.492 | — | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.09, 3.068 | [source](https://www.hydro.eaufrance.fr/stationhydro/O340101003/series) |
| La Muze à Montjaux \[Saint-Hippolyte\] | France | 0.062 | Much below normal — 82% below the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.082, 2.922 | [source](https://www.hydro.eaufrance.fr/stationhydro/O345431001/series) |
| Le Tarn à Mostuéjouls \[La Muse\] | France | 7.395 | Below normal — 53% below the historic median | 2026-10-07 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.21, 3.222 | [source](https://www.hydro.eaufrance.fr/stationhydro/O314101001/series) |

## Related rivers

-   [Loire](/archive/2026-10-08/rivers/loire.html)
-   [Seine](/archive/2026-10-08/rivers/seine.html)
-   [Garonne](/archive/2026-10-08/rivers/garonne.html)
-   [Saône](/archive/2026-10-08/rivers/saone.html)
-   [Dordogne](/archive/2026-10-08/rivers/dordogne.html)
-   [Maine](/archive/2026-10-08/rivers/maine.html)
-   [Vienne](/archive/2026-10-08/rivers/vienne.html)
-   [Doubs](/archive/2026-10-08/rivers/doubs.html)
-   [Allier](/archive/2026-10-08/rivers/allier.html)
-   [Durance](/archive/2026-10-08/rivers/durance.html)
-   [Oise](/archive/2026-10-08/rivers/oise.html)
-   [Cher](/archive/2026-10-08/rivers/cher.html)

## 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.

Underlying dataset built 2026-10-08T11:59:44.803026+00:00. This page generated 2026-10-08T12:10:09.696Z. Discharge values carry their own observation dates in the table above.

[Explore the Tarn on the interactive map →](/archive/2026-10-08/)