Garonne river
Also known as: La Garonne, La Gimone, L'Aussonnelle
The Garonne (also known as La Garonne, La Gimone, L'Aussonnelle) is a European river flowing through France. As of 2026-10-15, the Garonne was flowing at about 100.8 m³/s at the La Garonne à Tonneins gauge.
- Canonical name
- Garonne
- Local names / aliases
- La Garonne, La Gimone, L'Aussonnelle
- Countries
- France
- Maximum upstream drainage area
- 55,940 km²
- Mapped river length
- 463.5 km
- Gauging stations
- 18
- Classification
- Major European river
- Latest measured discharge
- 100.8 m³/s (La Garonne à Tonneins, 2026-10-15)
Gauging stations on the Garonne
The following 18 gauging stations report discharge for the Garonne, 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 |
|---|---|---|---|---|---|---|---|---|---|
| La Garonne à Tonneins | France | 100.8 | Much below normal54% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.389, 0.301 | source | |
| La Garonne à Marmande | France | 133.4 | Much below normal42% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.5, 0.156 | source | |
| La Garonne à la Réole | France | 125.8 | — | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.579, -0.035 | source | |
| La Garonne à Lamagistère | France | 82.756 | Much below normal47% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 44.121, 0.831 | source | |
| La Gimone à Cordes-Tolosannes [Castelferrus] | France | 0.709 | Below normal15% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.998, 1.111 | source | |
| La Garonne à Verdun-sur-Garonne - HG | France | 33.322 | Much below normal54% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.854, 1.242 | source | |
| L'Aussonnelle à Seilh | France | 0.042 | Much below normal84% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.692, 1.356 | source | |
| La Garonne à Portet-sur-Garonne | France | 33.239 | Much below normal56% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.526, 1.415 | source | |
| La Garonne à Marquefave | France | 19.443 | Much below normal52% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.317, 1.245 | source | |
| Le Louge à Muret | France | 1.136 | Much below normal72% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.46, 1.317 | source | |
| La Garonne à Palaminy [Cazères] | France | 37.55 | Much below normal24% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.202, 1.071 | source | |
| La Garonne [partielle] à Saint-Gaudens [Valentine] | France | 15.555 | Much below normal47% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.098, 0.706 | source | |
| Le canal de Saint-Martory à Mancioux | France | 3.556 | — | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.152, 0.951 | source | |
| La Garonne à Mancioux | France | 11.675 | Much below normal46% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 43.158, 0.958 | source | |
| Le Maudan à Melles - [Fos] | France | 0.149 | Much below normal68% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 42.867, 0.748 | source | |
| La Garonne à Saint-Béat - HE | France | 5.567 | Much below normal51% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 42.915, 0.692 | source | |
| La Garonne à Saint-Béat - Aval-HG | France | 4.117 | — | daily mean | Donnée brute | Hub'Eau Hydrométrie | 42.916, 0.69 | source | |
| La Garonne à Chaum | France | 11.687 | Much below normal39% below the historic median | daily mean | Donnée brute | Hub'Eau Hydrométrie | 42.939, 0.648 | 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.