# Shannon river

The Shannon is a European river flowing through Ireland. As of 2026-10-16, the Shannon was flowing at about 36.651 m³/s at the Athlone gauge.

**Canonical name:** Shannon

**Countries:** Ireland

**Maximum upstream drainage area:** 11,770 km²

**Mapped river length:** 241.8 km

**Gauging stations:** 2

**Latest measured discharge:** 36.651 m³/s (Athlone, 2026-10-16)

## Gauging stations on the Shannon

The following 2 gauging stations report discharge for the Shannon, 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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Athlone | Ireland | 36.651 | Below normal — 50% below the historic median | 2026-10-16 | instantaneous | OPW quality code 254 | Office of Public Works Hydro-Data | 53.422, -7.941 | [source](https://waterlevel.ie/) |
| Jamestown | Ireland | 53.099 | — | 2026-10-16 | instantaneous | OPW quality code 254 | Office of Public Works Hydro-Data | 53.923, -8.03 | [source](https://waterlevel.ie/) |

## Related rivers

-   [Erne](/rivers/erne.html)
-   [Suir](/rivers/suir.html)
-   [Blackwater \[Munster\]](/rivers/blackwater-munster.html)
-   [Barrow](/rivers/barrow.html)
-   [Boyne](/rivers/boyne.html)
-   [Nore](/rivers/nore.html)
-   [Moy](/rivers/moy.html)
-   [Cong Canal](/rivers/cong-canal.html)
-   [Suck](/rivers/suck.html)
-   [Inny](/rivers/inny.html)
-   [Brosna](/rivers/brosna.html)
-   [Lee](/rivers/lee.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 Shannon on the interactive map →](/)