# Iller river

The Iller is a European river flowing through Germany. As of 2026-10-16, the Iller was flowing at about 5.26 m³/s at the Sonthofen gauge.

**Canonical name:** Iller

**Countries:** Germany

**Maximum upstream drainage area:** 2,243 km²

**Mapped river length:** 120.7 km

**Gauging stations:** 13

**Latest measured discharge:** 5.26 m³/s (Sonthofen, 2026-10-16)

## Gauging stations on the Iller

The following 13 gauging stations report discharge for the Iller, 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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Sonthofen | Germany | 5.26 | Much below normal — 59% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.524, 10.26 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Immenstadt | Germany | 0.58 | Much below normal — 71% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.565, 10.231 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Durach | Germany | 0.052 | Much below normal — 80% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.698, 10.343 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Kempten | Germany | 16.8 | Much below normal — 47% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.73, 10.317 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Stielings | Germany | 0.087 | Much below normal — 91% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.768, 10.337 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Aitrach KW | Germany | 14.9 | Much below normal — 54% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.939, 10.108 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Ferthofen | Germany | 14.3 | — | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 47.941, 10.103 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Heimertingen | Germany | 0.722 | Much below normal — 62% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 48.045, 10.15 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Gerlenhofen | Germany | 14.3 | Below normal — 7% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 48.35, 10.012 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Wiblingen | Germany | 9.11 | Much below normal — 74% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 48.371, 9.988 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Wiblingen (virtuell) | Germany | 23.4 | Much below normal — 54% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 48.371, 9.987 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Neu-Ulm | Germany | 31.9 | Much below normal — 63% below the historic median | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 48.389, 9.987 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |
| Neu-Ulm Q | Germany | 44.3 | — | 2026-10-16 | instantaneous | unvalidated operational value | Datenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de | 48.389, 9.987 | [source](https://www.gkd.bayern.de/de/fluesse/abfluss/tabellen) |

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-   [Danube](/rivers/danube.html)
-   [Elbe](/rivers/elbe.html)
-   [Weser](/rivers/weser.html)
-   [Moselle](/rivers/moselle.html)
-   [Main](/rivers/main.html)
-   [km 107,47](/rivers/km-107-47.html)
-   [Saale](/rivers/saale.html)
-   [Untere Havel-Wasserstrasse](/rivers/untere-havel-wasserstrasse.html)
-   [Neckar](/rivers/neckar.html)
-   [Ems](/rivers/ems.html)
-   [Isar](/rivers/isar.html)
-   [Regnitz](/rivers/regnitz.html)

## Data, sources &amp; 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 Iller on the interactive map →](/)
