River Flow Europe

Ounasjoki river

The Ounasjoki is a European river flowing through Finland. As of 2026-10-10, the Ounasjoki was flowing at about 148 m³/s at the Ounasjoki, Marraskoski gauge.

Canonical name
Ounasjoki
Countries
Finland
Maximum upstream drainage area
14,454 km²
Mapped river length
79.3 km
Gauging stations
2
Latest measured discharge
148 m³/s (Ounasjoki, Marraskoski, 2026-10-10)

Gauging stations on the Ounasjoki

The following 2 gauging stations report discharge for the Ounasjoki, ordered downstream (largest catchment first). Discharge is in cubic metres per second (m³/s).

StationCountryDischarge (m³/s)Historical ComparisonObservedMeasurementData qualityProviderLat, LonSource
Ounasjoki, MarraskoskiFinland148Normal6% above the historic mediandaily meanSYKE flag not suppliedFinnish Environment Institute66.794, 25.424source
Ounasjoki, KöngäsFinland43.76Normal8% below the historic mediandaily meanSYKE flag 108Finnish Environment Institute67.878, 24.849source

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 Ounasjoki on the interactive map →