River Flow Europe

Ipoly river

The Ipoly is a European river flowing through Hungary. As of 2026-10-16, the Ipoly was flowing at about 0.447 m³/s at the Ipolytölgyes gauge.

Canonical name
Ipoly
Countries
Hungary
Maximum upstream drainage area
5,148 km²
Mapped river length
139.8 km
Gauging stations
4
Latest measured discharge
0.447 m³/s (Ipolytölgyes, 2026-10-16)

Gauging stations on the Ipoly

The following 4 gauging stations report discharge for the Ipoly, ordered downstream (largest catchment first). Discharge is in cubic metres per second (m³/s).

StationCountryDischarge (m³/s)Historical ComparisonObservedMeasurementData qualityProviderLat, LonSource
IpolytölgyesHungary0.447Much below normal91% below the historic medianinstantaneousoperational open-data observationHungarian General Directorate of Water Management47.925, 18.765source
IpolytarnócHungary0.478Much below normal70% below the historic medianinstantaneousoperational open-data observationHungarian General Directorate of Water Management48.236, 19.606source
NógrádszakálHungary0.722Much below normal74% below the historic medianinstantaneousoperational open-data observationHungarian General Directorate of Water Management48.191, 19.53source
BalassagyarmatHungary5.533Above normal92% above the historic medianinstantaneousoperational open-data observationHungarian General Directorate of Water Management48.076, 19.28source

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 Ipoly on the interactive map →