River Flow Europe

Iller river

The Iller is a European river flowing through Germany. As of 2026-10-11, the Iller was flowing at about 12.1 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
12.1 m³/s (Sonthofen, 2026-10-11)

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).

StationCountryDischarge (m³/s)Historical ComparisonObservedMeasurementData qualityProviderLat, LonSource
SonthofenGermany12.1Normal6% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.524, 10.26source
ImmenstadtGermany1.27Normal36% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.565, 10.231source
DurachGermany0.132Normal49% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.698, 10.343source
KemptenGermany34.3Normal8% above the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.73, 10.317source
StielingsGermany0.158Much below normal83% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.768, 10.337source
Aitrach KWGermany34.9Normal7% above the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.939, 10.108source
FerthofenGermany39.6—instantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de47.941, 10.103source
HeimertingenGermany0.722Much below normal62% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de48.045, 10.15source
GerlenhofenGermany14.3Below normal7% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de48.35, 10.012source
WiblingenGermany23.7Below normal33% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de48.371, 9.988source
Wiblingen (virtuell)Germany38.7Below normal24% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de48.371, 9.987source
Neu-UlmGermany39.3Much below normal54% below the historic medianinstantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de48.389, 9.987source
Neu-Ulm QGermany60.6—instantaneousunvalidated operational valueDatenquelle: Bayerisches Landesamt für Umwelt, www.lfu.bayern.de48.389, 9.987source

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 . This page generated . Discharge values carry their own observation dates in the table above.

Explore the Iller on the interactive map →