**Archived extract:** 2026-10-13 (UTC). Frozen data; observation dates are shown as captured. [View the current site](/)

# Tarna river

The Tarna is a European river flowing through Hungary. As of 2026-10-13, the Tarna was flowing at about 0.001 m³/s at the Sirok ZTVSZR I gauge.

**Canonical name:** Tarna

**Countries:** Hungary

**Maximum upstream drainage area:** 2,045 km²

**Mapped river length:** 61.2 km

**Gauging stations:** 5

**Latest measured discharge:** 0.001 m³/s (Sirok ZTVSZR I, 2026-10-13)

## Gauging stations on the Tarna

The following 5 gauging stations report discharge for the Tarna, 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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Sirok ZTVSZR I | Hungary | 0.001 | — | 2026-10-13 | instantaneous | operational open-data observation | Hungarian General Directorate of Water Management | 47.918, 20.187 | [source](https://data.vizugy.hu/) |
| Sirok ZTVSZR II | Hungary | 0.009 | — | 2026-10-13 | instantaneous | operational open-data observation | Hungarian General Directorate of Water Management | 47.918, 20.193 | [source](https://data.vizugy.hu/) |
| Verpelét | Hungary | 0.023 | Much below normal — 94% below the historic median | 2026-10-13 | instantaneous | operational open-data observation | Hungarian General Directorate of Water Management | 47.854, 20.217 | [source](https://data.vizugy.hu/) |
| Tarnaméra | Hungary | 0.239 | Normal — 43% below the historic median | 2026-10-13 | instantaneous | operational open-data observation | Hungarian General Directorate of Water Management | 47.667, 20.146 | [source](https://data.vizugy.hu/) |
| Tarnaörs | Hungary | 0.269 | Much below normal — 83% below the historic median | 2026-10-13 | instantaneous | operational open-data observation | Hungarian General Directorate of Water Management | 47.597, 20.048 | [source](https://data.vizugy.hu/) |

## Related rivers

-   [Tisza](/archive/2026-10-13/rivers/tisza.html)
-   [Mureș](/archive/2026-10-13/rivers/mures.html)
-   [Maros](/archive/2026-10-13/rivers/maros.html)
-   [Nagykunsági-főcsatorna](/archive/2026-10-13/rivers/nagykunsagi-focsatorna.html)
-   [Hármas-Körös](/archive/2026-10-13/rivers/harmas-koros.html)
-   [Szamos](/archive/2026-10-13/rivers/szamos.html)
-   [Sio](/archive/2026-10-13/rivers/sio.html)
-   [Sajó](/archive/2026-10-13/rivers/sajo.html)
-   [Sebes-Körös](/archive/2026-10-13/rivers/sebes-koros.html)
-   [Rába](/archive/2026-10-13/rivers/raba-736.html)
-   [Kettős-Körös](/archive/2026-10-13/rivers/kettos-koros.html)
-   [Zala](/archive/2026-10-13/rivers/zala.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 2026-10-13T13:08:02.764932+00:00. This page generated 2026-10-13T13:14:53.390Z. Discharge values carry their own observation dates in the table above.

[Explore the Tarna on the interactive map →](/archive/2026-10-13/)