**Archived extract:** 2026-10-14 (UTC). Frozen data; observation dates are shown as captured. [View the current site](/)

# Ähtävänjoki river

The Ähtävänjoki is a European river flowing through Finland. As of 2026-10-11, the Ähtävänjoki was flowing at about 15.9 m³/s at the Ähtävänjoki, Hanhikoski gauge.

**Canonical name:** Ähtävänjoki

**Countries:** Finland

**Maximum upstream drainage area:** 2,555 km²

**Mapped river length:** 115.3 km

**Gauging stations:** 9

**Latest measured discharge:** 15.9 m³/s (Ähtävänjoki, Hanhikoski, 2026-10-11)

## Gauging stations on the Ähtävänjoki

The following 9 gauging stations report discharge for the Ähtävänjoki, 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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Ähtävänjoki, Hanhikoski | Finland | 15.9 | Above normal — 23% above the historic median | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.332, 23.571 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Evijärvi, Kaarenhaara | Finland | 21.21 | — | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.433, 23.401 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Kattilakoski | Finland | 19.39 | Above normal — 43% above the historic median | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.47, 23.31 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Björkfors, Q | Finland | 17.75 | — | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.521, 23.214 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Finnholm | Finland | 20.34 | — | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.555, 23.159 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Hattar | Finland | 20.51 | — | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.573, 23.133 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Värnum | Finland | 13.62 | — | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.59, 23.097 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Långfors | Finland | 28.75 | — | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.628, 22.951 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |
| Herrfors | Finland | 20.51 | Above normal — 40% above the historic median | 2026-10-11 | daily mean | SYKE flag 108 | Finnish Environment Institute | 63.623, 22.884 | [source](https://www.syke.fi/en/environmental-data/open-web-services/environmental-data-apis) |

## Related rivers

-   [Vuoksi](/archive/2026-10-14/rivers/vuoksi.html)
-   [Ossauskoski](/archive/2026-10-14/rivers/ossauskoski.html)
-   [Valajaskoski](/archive/2026-10-14/rivers/valajaskoski.html)
-   [Karunki](/archive/2026-10-14/rivers/karunki.html)
-   [Kemijoki](/archive/2026-10-14/rivers/kemijoki.html)
-   [Pirttikoski](/archive/2026-10-14/rivers/pirttikoski.html)
-   [Seitakorva](/archive/2026-10-14/rivers/seitakorva.html)
-   [Piirteenvirta](/archive/2026-10-14/rivers/piirteenvirta.html)
-   [Merikoski](/archive/2026-10-14/rivers/merikoski.html)
-   [Konnivesi](/archive/2026-10-14/rivers/konnivesi.html)
-   [Kokemenjoki](/archive/2026-10-14/rivers/kokemenjoki.html)
-   [Kolsi](/archive/2026-10-14/rivers/kolsi.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 2026-10-14T13:18:09.546920+00:00. This page generated 2026-10-14T13:21:29.953Z. Discharge values carry their own observation dates in the table above.

[Explore the Ähtävänjoki on the interactive map →](/archive/2026-10-14/)