# Pirttikoski river

The Pirttikoski is a European river flowing through Finland. As of 2026-10-15, the Pirttikoski was flowing at about 473.7 m³/s at the Pirttikoski gauge.

**Canonical name:** Pirttikoski

**Countries:** Finland

**Maximum upstream drainage area:** 31,511 km²

**Mapped river length:** 74.2 km

**Gauging stations:** 4

**Classification:** Major European river

**Latest measured discharge:** 473.7 m³/s (Pirttikoski, 2026-10-15)

## Gauging stations on the Pirttikoski

The following 4 gauging stations report discharge for the Pirttikoski, 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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Pirttikoski | Finland | 473.7 | Much above normal — 59% above the historic median | 2026-10-15 | daily mean | SYKE flag 108 | Finnish Environment Institute | 66.339, 27.159 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Juotas, konevirtaama | Finland | 0 | — | 2026-10-15 | daily mean | SYKE flag 108 | Finnish Environment Institute | 66.32, 26.954 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Iso-Kaihua | Finland | 7.47 | — | 2026-10-14 | daily mean | SYKE flag not supplied | Finnish Environment Institute | 66.373, 26.83 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Vanttauskoski | Finland | 493.4 | Much above normal — 65% above the historic median | 2026-10-15 | daily mean | SYKE flag 108 | Finnish Environment Institute | 66.367, 26.69 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |

## Related rivers

-   [Vuoksi](/rivers/vuoksi.html)
-   [Ossauskoski](/rivers/ossauskoski.html)
-   [Valajaskoski](/rivers/valajaskoski.html)
-   [Karunki](/rivers/karunki.html)
-   [Kemijoki](/rivers/kemijoki.html)
-   [Seitakorva](/rivers/seitakorva.html)
-   [Piirteenvirta](/rivers/piirteenvirta.html)
-   [Merikoski](/rivers/merikoski.html)
-   [Konnivesi](/rivers/konnivesi.html)
-   [Kokemenjoki](/rivers/kokemenjoki.html)
-   [Kolsi](/rivers/kolsi.html)
-   [Pälli](/rivers/palli.html)

## 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 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 Pirttikoski on the interactive map →](/)