River Flow Europe

Boyne river

The Boyne is a European river flowing through Ireland. As of 2026-10-16, the Boyne was flowing at about 16.063 m³/s at the Slane Castle gauge.

Canonical name
Boyne
Countries
Ireland
Maximum upstream drainage area
2,771 km²
Mapped river length
77 km
Gauging stations
3
Latest measured discharge
16.063 m³/s (Slane Castle, 2026-10-16)

Gauging stations on the Boyne

The following 3 gauging stations report discharge for the Boyne, ordered downstream (largest catchment first). Discharge is in cubic metres per second (m³/s).

StationCountryDischarge (m³/s)Historical ComparisonObservedMeasurementData qualityProviderLat, LonSource
Slane CastleIreland16.063Normal46% below the historic medianinstantaneousOPW quality code 254Office of Public Works Hydro-Data53.707, -6.562source
TrimIreland8.459Normal46% below the historic medianinstantaneousOPW quality code 254Office of Public Works Hydro-Data53.556, -6.792source
Navan WeirIreland8.022Below normal62% below the historic medianinstantaneousOPW quality code 254Office of Public Works Hydro-Data53.644, -6.672source

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 . This page generated . Discharge values carry their own observation dates in the table above.

Explore the Boyne on the interactive map →