# Ill river

Also known as: L'Ill

The Ill (also known as L'Ill) is a European river flowing through France. As of 2026-10-15, the Ill was flowing at about 8.746 m³/s at the L'Ill à Illhaeusern gauge.

**Canonical name:** Ill

**Local names / aliases:** L'Ill

**Countries:** France

**Maximum upstream drainage area:** 3,639 km²

**Mapped river length:** 111 km

**Gauging stations:** 11

**Latest measured discharge:** 8.746 m³/s (L'Ill à Illhaeusern, 2026-10-15)

## Gauging stations on the Ill

The following 11 gauging stations report discharge for the Ill, 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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| L'Ill à Illhaeusern | France | 8.746 | — | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 48.185, 7.433 | [source](https://www.hydro.eaufrance.fr/stationhydro/A220000101/series) |
| Le Giessen à Sélestat - Pont RD1083 | France | 0.001 | Much below normal — 100% below the historic median | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 48.272, 7.46 | [source](https://www.hydro.eaufrance.fr/stationhydro/A235020001/series) |
| L'Ill à Kogenheim | France | 12.344 | Below normal — 33% below the historic median | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 48.337, 7.547 | [source](https://www.hydro.eaufrance.fr/stationhydro/A236003001/series) |
| L'Ill à Didenheim | France | 0.768 | Much below normal — 69% below the historic median | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 47.718, 7.307 | [source](https://www.hydro.eaufrance.fr/stationhydro/A116003002/series) |
| L'Ill à Brunstatt | France | 1.211 | — | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 47.729, 7.315 | [source](https://www.hydro.eaufrance.fr/stationhydro/A116003004/series) |
| \[L'Ancienne Ill\] à Illzach | France | 6.506 | — | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 47.766, 7.35 | [source](https://www.hydro.eaufrance.fr/stationhydro/A116003101/series) |
| L'Ill à Sausheim | France | 6.609 | — | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 47.777, 7.354 | [source](https://www.hydro.eaufrance.fr/stationhydro/A130000101/series) |
| L'Ill à Ensisheim | France | 5.558 | Normal — 5% above the historic median | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 47.867, 7.348 | [source](https://www.hydro.eaufrance.fr/stationhydro/A133003001/series) |
| L'Ill à Meyenheim | France | 4.932 | — | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 47.913, 7.36 | [source](https://www.hydro.eaufrance.fr/stationhydro/A147004101/series) |
| L'Ill à Sundhoffen | France | 3.605 | Normal — 54% below the historic median | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 48.042, 7.418 | [source](https://www.hydro.eaufrance.fr/stationhydro/A147004001/series) |
| L'Ill à Colmar \[Ladhof\] | France | 6.831 | Normal — 30% below the historic median | 2026-10-15 | daily mean | Donnée brute | Hub'Eau Hydrométrie | 48.103, 7.385 | [source](https://www.hydro.eaufrance.fr/stationhydro/A161003001/series) |

## Related rivers

-   [Loire](/rivers/loire.html)
-   [Seine](/rivers/seine.html)
-   [Garonne](/rivers/garonne.html)
-   [Saône](/rivers/saone.html)
-   [Dordogne](/rivers/dordogne.html)
-   [Maine](/rivers/maine.html)
-   [Vienne](/rivers/vienne.html)
-   [Tarn](/rivers/tarn.html)
-   [Allier](/rivers/allier.html)
-   [Durance](/rivers/durance.html)
-   [Oise](/rivers/oise.html)
-   [Cher](/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 2026-10-16T13:31:53.036165+00:00. This page generated 2026-10-16T13:35:10.972Z. Discharge values carry their own observation dates in the table above.

[Explore the Ill on the interactive map →](/)