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

# Ahja j. river

The Ahja j. is a European river flowing through Estonia. As of 2026-10-11, the Ahja j. was flowing at about 5.862 m³/s at the Ahja gauge.

**Canonical name:** Ahja j.

**Countries:** Estonia

**Maximum upstream drainage area:** 1,055 km²

**Mapped river length:** 44.4 km

**Gauging stations:** 1

**Latest measured discharge:** 5.862 m³/s (Ahja, 2026-10-11)

## Gauging stations on the Ahja j.

The following gauging station reports discharge for the Ahja j.. Discharge is in cubic metres per second (m³/s).

| Station | Country | Discharge (m³/s) | Historical Comparison | Observed | Measurement | Data quality | Provider | Lat, Lon | Source |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Ahja | Estonia | 5.862 | — | 2026-10-11 | instantaneous | operational observation | Estonian Environment Portal | 58.209, 27.113 | [source](https://keskkonnaandmed.envir.ee/f_hydroseire) |

## Related rivers

-   [Narva](/archive/2026-10-13/rivers/narva.html)
-   [Narva](/archive/2026-10-13/rivers/narva-553.html)
-   [Emajõgi](/archive/2026-10-13/rivers/emajogi.html)
-   [Pärnu](/archive/2026-10-13/rivers/parnu.html)
-   [Kasari j.](/archive/2026-10-13/rivers/kasari-j.html)
-   [Mustjõgi](/archive/2026-10-13/rivers/mustjogi.html)
-   [Väike Emajõgi](/archive/2026-10-13/rivers/vaike-emajogi.html)
-   [Jägala j.](/archive/2026-10-13/rivers/jagala-j.html)
-   [Võhandu j.](/archive/2026-10-13/rivers/vohandu-j.html)
-   [Rannapungerja](/archive/2026-10-13/rivers/rannapungerja.html)
-   [Avijõgi](/archive/2026-10-13/rivers/avijogi.html)
-   [Narva](/archive/2026-10-13/rivers/narva-552.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 Ahja j. on the interactive map →](/archive/2026-10-13/)