River Flow Europe

Kolsi river

The Kolsi is a European river flowing through Finland. As of 2026-10-14, the Kolsi was flowing at about 301.2 m³/s at the Kolsi gauge.

Canonical name
Kolsi
Countries
Finland
Maximum upstream drainage area
22,943 km²
Mapped river length
60.7 km
Gauging stations
2
Latest measured discharge
301.2 m³/s (Kolsi, 2026-10-14)

Gauging stations on the Kolsi

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

StationCountryDischarge (m³/s)Historical ComparisonObservedMeasurementData qualityProviderLat, LonSource
KolsiFinland301.2Much above normal133% above the historic mediandaily meanSYKE flag not suppliedFinnish Environment Institute61.27, 22.361source
HarjavaltaFinland289.3Much above normal122% above the historic mediandaily meanSYKE flag not suppliedFinnish Environment Institute61.337, 22.118source

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 Kolsi on the interactive map →