Mersey river
Also known as: River Mersey
The Mersey (also known as River Mersey) is a European river flowing through United Kingdom. As of 2026-10-16, the Mersey was flowing at about 45.4 m³/s at the Westy gauge.
- Canonical name
- Mersey
- Local names / aliases
- River Mersey
- Countries
- United Kingdom
- Maximum upstream drainage area
- 2,380 km²
- Mapped river length
- 54 km
- Gauging stations
- 2
- Latest measured discharge
- 45.4 m³/s (Westy, 2026-10-16)
Gauging stations on the Mersey
The following 2 gauging stations report discharge for the Mersey, 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 |
|---|---|---|---|---|---|---|---|---|---|
| Westy | United Kingdom | 45.4 | — | instantaneous | raw real-time | Environment Agency | 53.391, -2.56 | source | |
| Ashton Weir | United Kingdom | 11.96 | — | instantaneous | raw real-time | Environment Agency | 53.438, -2.344 | source |
Related rivers
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.