HydrionisGlobal Water Intelligence
Monitoring network

Ireland monitoring network

Hydrionis holds continuous records from 450 monitoring locations in Ireland, the earliest opening in 2025.

450 locations2025–2026
450
Monitoring locations
15,621
Observations held
2025–2026
Record span
1
Kinds of measurement

Where the network is

Ireland monitoring network
450 river gauges
Ireland monitoring network400 locations, each labelled individually.Sandy Mills — River gauge, 2026–2026Ballybofey — River gauge, 2026–2026Glaslough — River gauge, 2026–2026Cappog Bridge — River gauge, 2026–2026Moyles Mill — River gauge, 2026–2026Clarebane — River gauge, 2026–2026Charleville Weir — River gauge, 2026–2026Tallanstown Weir — River gauge, 2026–2026Burley — River gauge, 2026–2026Aclint — River gauge, 2026–2026Port Oriel — River gauge, 2026–2026Dundalk Port — River gauge, 2026–2026Carlingford — River gauge, 2026–2026Tremblestown — River gauge, 2026–2026Killyon — River gauge, 2026–2026Castlerickard — River gauge, 2026–2026Trim — River gauge, 2026–2026Fyanstown — River gauge, 2026–2026Boyne Aqueduct — River gauge, 2026–2026Navan Weir — River gauge, 2026–2026Liscartan — River gauge, 2026–2026O'Dalys Bridge — River gauge, 2026–2026Slane Castle — River gauge, 2026–2026Virginia Hatchery — River gauge, 2026–2026Tinker's Bridge — River gauge, 2026–2026Mornington Bridge — River gauge, 2026–2026Virginia — River gauge, 2026–2026Newfield — River gauge, 2026–2026Broadmeadow — River gauge, 2026–2026Duleek D/S — River gauge, 2026–2026Leixlip — River gauge, 2026–2026Waldron's Bridge — River gauge, 2026–2026Killashee — River gauge, 2026–2026Haynestown — River gauge, 2026–2026Hazelhatch — River gauge, 2026–2026Clonee Weir — River gauge, 2026–2026Anglesea Road — River gauge, 2026–2026Powerscourt House — River gauge, 2026–2026Arklow Harbour — River gauge, 2026–2026Ravenswell Road — River gauge, 2026–2026Scarawalsh — River gauge, 2026–2026Enniscorthy — River gauge, 2026–2026Tullow Town Bridge U/S — River gauge, 2026–2026St. Johns Bridge — River gauge, 2026–2026Rafter Bridge D/S — River gauge, 2026–2026Rafter Bridge U/S — River gauge, 2026–2026Ballynagee — River gauge, 2026–2026Whitemill South — River gauge, 2026–2026Assaly — River gauge, 2026–2026Ferrycarrig Bridge — River gauge, 2026–2026Lady's Island — River gauge, 2026–2026Sigginstown — River gauge, 2026–2026Cull Pump House — River gauge, 2026–2026Carlow — River gauge, 2026–2026Borness — River gauge, 2026–2026Clonbulloge — River gauge, 2026–2026Pass Bridge — River gauge, 2026–2026Derrybrock — River gauge, 2026–2026Cushina — River gauge, 2026–2026Rathangan — River gauge, 2026–2026Ballinacarrig — River gauge, 2026–2026Royal Oak — River gauge, 2026–2026Levitstown — River gauge, 2026–2026Barrow New Bridge — River gauge, 2026–2026St. Mullins — River gauge, 2026–2026Chapel Street — River gauge, 2026–2026Manor Road — River gauge, 2026–2026Turf Market — River gauge, 2026–2026Coolroe — River gauge, 2026–2026Prusselstown — River gauge, 2026–2026Annamult — River gauge, 2026–2026John's Bridge Nore — River gauge, 2026–2026Mcmahons Bridge — River gauge, 2026–2026Durrow Foot Bridge — River gauge, 2026–2026Brownsbarn — River gauge, 2026–2026Kilbricken — River gauge, 2026–2026Borris-In-Ossory — River gauge, 2026–2026Callan — River gauge, 2026–2026Mount Juliet — River gauge, 2026–2026Blackfriar's Bridge — River gauge, 2026–2026Ballylarkin — River gauge, 2026–2026Athlummon — River gauge, 2026–2026Beakstown — River gauge, 2026–2026Rathkennan — River gauge, 2026–2026Thurles — River gauge, 2026–2026Aughnagross — River gauge, 2026–2026Ballinaclogh — River gauge, 2026–2026Killardry — River gauge, 2026–2026Caher Park — River gauge, 2026–2026Anner — River gauge, 2026–2026Clonmel — River gauge, 2026–2026Tar Bridge — River gauge, 2026–2026Fourmilewater FFWS Main Logger — River gauge, 2026–2026Clobanna — River gauge, 2026–2026Carrick On Suir — River gauge, 2026–2026Marlfield Reservoir — River gauge, 2026–2026Newcastle Bridge — River gauge, 2026–2026Knocklofty — River gauge, 2026–2026Sandy Banks — River gauge, 2026–2026Joyce's Lane — River gauge, 2026–2026Workhouse Bridge — River gauge, 2026–2026Fourmilewater FFWS back-up — River gauge, 2026–2026Ardfinnan — River gauge, 2026–2026Templemore — River gauge, 2026–2026Borrisoleigh — River gauge, 2026–2026Grove — River gauge, 2026–2026Adelphi Quay — River gauge, 2026–2026Dunmore East — River gauge, 2026–2026Mogeely — River gauge, 2026–2026Ballyduff — River gauge, 2026–2026Killavullen — River gauge, 2026–2026Downing Bridge — River gauge, 2026–2026Glenavuddig Bridge — River gauge, 2026–2026Glandalane — River gauge, 2026–2026Mallow Railway Bridge — River gauge, 2026–2026Mallow Town Bridge U/S — River gauge, 2026–2026Mallow Town Bridge D/S — River gauge, 2026–2026Youghal Quay — River gauge, 2026–2026Castletownroche Weir — River gauge, 2026–2026Castlelands — River gauge, 2026–2026Fermoy Bridge D/S — River gauge, 2026–2026Araglin Bridge — River gauge, 2026–2026Lombardstown Bridge — River gauge, 2026–2026Kilbrin Road — River gauge, 2026–2026Church Street — River gauge, 2026–2026Keale Bridge — River gauge, 2026–2026Ahane Bridge — River gauge, 2026–2026Clashmorgan — River gauge, 2026–2026Fermoy Mill — River gauge, 2026–2026Ballydahin — River gauge, 2026–2026Fermoy U/S Rowing — River gauge, 2026–2026Ballea — River gauge, 2026–2026Ballyedmond — River gauge, 2026–2026Kilmona Bridge — River gauge, 2026–2026Gothic Bridge — River gauge, 2026–2026Ballyvourney — River gauge, 2026–2026Ballincolly — River gauge, 2026–2026Glen Park — River gauge, 2026–2026Blackpool Retail Park — River gauge, 2026–2026Glennamought Br. — River gauge, 2026–2026Ballycotton — River gauge, 2026–2026Ringaskiddy NMCI — River gauge, 2026–2026Inniscarra Headrace — River gauge, 2026–2026Carrigadrohid Headrace — River gauge, 2026–2026Waterworks Weir — River gauge, 2026–2026Ovens Bridge — River gauge, 2026–2026Morris's Bridge — River gauge, 2026–2026Muskerry — River gauge, 2026–2026Cooldaniel — River gauge, 2026–2026Dripsey Bridge — River gauge, 2026–2026Bawnafinny Bridge — River gauge, 2026–2026Inniscarra Tailrace — River gauge, 2026–2026Killaclug — River gauge, 2026–2026Coolmucky Bridge — River gauge, 2026–2026County Hall — River gauge, 2026–2026Carrigrohane Bridge — River gauge, 2026–2026Killamucky — River gauge, 2026–2026Dungourney Bridge — River gauge, 2026–2026Midleton Town Park — River gauge, 2026–2026Ballyedmond Backup — River gauge, 2026–2026Currach Club — River gauge, 2026–2026St Patrick’s Quay (East) — River gauge, 2026–2026Fitzgerald's Park — River gauge, 2026–2026Pope’s Quay — River gauge, 2026–2026Mercy Hospital — River gauge, 2026–2026Bailick Road U/S — River gauge, 2026–2026Bailick Road D/S — River gauge, 2026–2026Tivoli Docks — River gauge, 2026–2026Curranure — River gauge, 2026–2026Long Bridge Dunmanway — River gauge, 2026–2026Ardcahan Bridge — River gauge, 2026–2026Bealaboy Bridge — River gauge, 2026–2026Clonakilty — River gauge, 2026–2026Skibbereen — River gauge, 2026–2026Sneem D/S — River gauge, 2026–2026Bridge Street — River gauge, 2026–2026Orchard Grove — River gauge, 2026–2026Bantry Library — River gauge, 2026–2026Kenmare Pier — River gauge, 2026–2026Bantry — River gauge, 2026–2026Riverville — River gauge, 2026–2026Torc Weir — River gauge, 2026–2026Flesk Bridge — River gauge, 2026–2026White Bridge — River gauge, 2026–2026Castlemaine — River gauge, 2026–2026Tomies Pier — River gauge, 2026–2026Inch Bridge Galey — River gauge, 2026–2026Listowel — River gauge, 2026–2026Ballymullen — River gauge, 2026–2026Sleveen Main Channel — River gauge, 2026–2026Lisloose — River gauge, 2026–2026Ballyseedy — River gauge, 2026–2026Oakpark Road — River gauge, 2026–2026Abbeydorney D/S — River gauge, 2026–2026Manor West — River gauge, 2026–2026Riverside Close — River gauge, 2026–2026Athea D/S — River gauge, 2026–2026Athea U/S — River gauge, 2026–2026Ferry Bridge Feale — River gauge, 2026–2026Blennerville — River gauge, 2026–2026Fenit — River gauge, 2026–2026Moneycashen — River gauge, 2026–2026Croom — River gauge, 2026–2026Gray's Bridge — River gauge, 2026–2026Bruree — River gauge, 2026–2026Athlacca — River gauge, 2026–2026Castleroberts — River gauge, 2026–2026Adare Manor — River gauge, 2026–2026Grange Bridge — River gauge, 2026–2026Rathkeale — River gauge, 2026–2026Riversfield Weir — River gauge, 2026–2026Rossbrien Railway Bridge — River gauge, 2026–2026Blackabbey — River gauge, 2026–2026Ferry Bridge Maigue — River gauge, 2026–2026Adare Quay — River gauge, 2026–2026Limerick Dock — River gauge, 2026–2026Normoyle's Bridge — River gauge, 2026–2026Gortboy Hotel — River gauge, 2026–2026Annacotty — River gauge, 2026–2026Barrington's Bridge — River gauge, 2026–2026Abington — River gauge, 2026–2026New Bridge Bilboa — River gauge, 2026–2026Sunville — River gauge, 2026–2026Ferbane — River gauge, 2026–2026Groody Bridge — River gauge, 2026–2026Millbrook — River gauge, 2026–2026Pollagh — River gauge, 2026–2026Rahan Clodiagh — River gauge, 2026–2026Banagher — River gauge, 2026–2026Killeen — River gauge, 2026–2026Croghan — River gauge, 2026–2026Syngefield — River gauge, 2026–2026New Bridge Little Brosna — River gauge, 2026–2026Ballyhooney — River gauge, 2026–2026Gourdeen — River gauge, 2026–2026Clarianna — River gauge, 2026–2026Scarriff — River gauge, 2026–2026Mullingar Pump Hse — River gauge, 2026–2026Meelick Weir — River gauge, 2026–2026Victoria Lock — River gauge, 2026–2026Culleen Fish Farm — River gauge, 2026–2026Bracknagh Bridge — River gauge, 2026–2026Waterpark Bridge — River gauge, 2026–2026Clonsingle Bridge — River gauge, 2026–2026Fairyhill — River gauge, 2026–2026Portumna Bridge — River gauge, 2026–2026Ballymackeogh — River gauge, 2026–2026Ballinamore — River gauge, 2026–2026Bookala — River gauge, 2026–2026Derrycahill — River gauge, 2026–2026Willsbrook — River gauge, 2026–2026Bellagill — River gauge, 2026–2026Johnston's Bridge — River gauge, 2026–2026Bellantra Bridge — River gauge, 2026–2026Riverstown — River gauge, 2026–2026Banada Bridge Lung — River gauge, 2026–2026Mullagh — River gauge, 2026–2026Argar — River gauge, 2026–2026Ballymahon — River gauge, 2026–2026Kilmore — River gauge, 2026–2026Athlone — River gauge, 2026–2026Shannonbridge — River gauge, 2026–2026Blackrock Lock — River gauge, 2026–2026Cuppanagh — River gauge, 2026–2026Lough Derravaragh — River gauge, 2026–2026Mount Nugent — River gauge, 2026–2026Jamestown — River gauge, 2026–2026Lomcloon — River gauge, 2026–2026Hodson's Bay — River gauge, 2026–2026Drumsna — River gauge, 2026–2026Derry Bay L. Ree — River gauge, 2026–2026Ballinalack — River gauge, 2026–2026Ahascragh Pump Hse — River gauge, 2026–2026Summer Hill — River gauge, 2026–2026Lysterfield — River gauge, 2026–2026Carrick-On-Shannon — River gauge, 2026–2026Athlone Weir U/S — River gauge, 2026–2026Derryholmes u/s — River gauge, 2026–2026Derryholmes d/s — River gauge, 2026–2026W.O.P.S Rail Bridge — River gauge, 2026–2026Ballinasloe Old Channel — River gauge, 2026–2026Raherbeg Rail Bridge — River gauge, 2026–2026Deerpark Bridge — River gauge, 2026–2026Bunowen Bridge — River gauge, 2026–2026Jamestown Weir U/S — River gauge, 2026–2026Scragh Bog — River gauge, 2026–2026Jamestown Weir D/S — River gauge, 2026–2026Ballinasloe Rail Station — River gauge, 2026–2026Rahara — River gauge, 2026–2026Atteagh — River gauge, 2026–2026Curraghboy — River gauge, 2026–2026Kiltoom Stream — River gauge, 2026–2026Carnagh East — River gauge, 2026–2026Inch Bridge Claureen — River gauge, 2026–2026Ballycorey — River gauge, 2026–2026Corrofin Fergus — River gauge, 2026–2026Owenogarney Railway Bridge — River gauge, 2026–2026Victoria Bridge — River gauge, 2026–2026Knox's Bridge — River gauge, 2026–2026Doora Bridge — River gauge, 2026–2026Carrigaholt Pier — River gauge, 2026–2026Clarecastle Barrage U/S — River gauge, 2026–2026Clarecastle Barrage D/S — River gauge, 2026–2026Ennis Bridge — River gauge, 2026–2026Shannon Airport — River gauge, 2026–2026Ennistimon — River gauge, 2026–2026Doonbeg — River gauge, 2026–2026Doonbeg Pier — River gauge, 2026–2026Rathgorgin — River gauge, 2026–2026Rahasane Turlough — River gauge, 2026–2026Clarinbridge — River gauge, 2026–2026Craughwell — River gauge, 2026–2026Aggard Bridge — River gauge, 2026–2026Kilcolgan — River gauge, 2026–2026Caherfinesker — River gauge, 2026–2026Oranmore Bridge — River gauge, 2026–2026Gortmackan — River gauge, 2026–2026Ballycahalan — River gauge, 2026–2026Kilcrimple — River gauge, 2026–2026Killafeen — River gauge, 2026–2026Gort 1B — River gauge, 2026–2026Cartronbower — River gauge, 2026–2026Ower Bridge — River gauge, 2026–2026Corrofin Clare — River gauge, 2026–2026Foxhill — River gauge, 2026–2026Ballygaddy — River gauge, 2026–2026Carrownagower — River gauge, 2026–2026Cong Weir — River gauge, 2026–2026Wolfe Tone Bridge — River gauge, 2026–2026Caher Pier — River gauge, 2026–2026Burriscara — River gauge, 2026–2026Annaghdown Pier — River gauge, 2026–2026Cong Pier — River gauge, 2026–2026Angligham — River gauge, 2026–2026Quincentennial Bridge — River gauge, 2026–2026Galway Barrage D/S — River gauge, 2026–2026Galway Barrage — River gauge, 2026–2026Oughterard — River gauge, 2026–2026Terryland — River gauge, 2026–2026Rossaveel Pier — River gauge, 2026–2026Spiddal — River gauge, 2026–2026Shannagurraun — River gauge, 2026–2026Derrinkee — River gauge, 2026–2026Owenmore Bridge — River gauge, 2026–2026Rahans Moy — River gauge, 2026–2026Ballylahan — River gauge, 2026–2026Scarrownageeragh — River gauge, 2026–2026Ballycarroon — River gauge, 2026–2026Curraghbonaun — River gauge, 2026–2026Cloonacannana — River gauge, 2026–2026Gneeve Bridge — River gauge, 2026–2026Banada Moy — River gauge, 2026–2026Turlough — River gauge, 2026–2026Enniscrone Pier — River gauge, 2026–2026Ballina — River gauge, 2026–2026Pollagh — River gauge, 2026–2026Pontoon — River gauge, 2026–2026Gortnaraby — River gauge, 2026–2026Corryosla — River gauge, 2026–2026Keenagh Deel Bridge — River gauge, 2026–2026Richmond Bridge — River gauge, 2026–2026Crossmolina — River gauge, 2026–2026Crossmolina Weir U/S — River gauge, 2026–2026Crossmolina Weir D/S — River gauge, 2026–2026Knockglass House — River gauge, 2026–2026Chapel View — River gauge, 2026–2026Crossmolina U/S — River gauge, 2026–2026Knockanelo — River gauge, 2026–2026Billa Bridge — River gauge, 2026–2026Ballygrania — River gauge, 2026–2026Big Bridge — River gauge, 2026–2026Ballysadare — River gauge, 2026–2026Dromahair — River gauge, 2026–2026New Bridge Manorhamilton — River gauge, 2026–2026Four Masters Bridge — River gauge, 2026–2026Lareen — River gauge, 2026–2026Ballynary — River gauge, 2026–2026Butlers Bridge — River gauge, 2026–2026Sallaghan — River gauge, 2026–2026Derreskit — River gauge, 2026–2026Anlore — River gauge, 2026–2026Ashfield — River gauge, 2026–2026Belturbet — River gauge, 2026–2026Killywillin — River gauge, 2026–2026Aghacashlaun — River gauge, 2026–2026Urney Bridge — River gauge, 2026–2026Breffni Park — River gauge, 2026–2026Killykeen Forest Park — River gauge, 2025–2025Innisconnell Pier — River gauge, 2026–2026Foalies Bridge — River gauge, 2026–2026Clonconwal — River gauge, 2026–2026Glenties — River gauge, 2026–2026Tullyarvan — River gauge, 2026–2026Gartan Bridge — River gauge, 2026–2026Aghawoney — River gauge, 2026–2026Burnfoot Pumping Station — River gauge, 2026–2026Port Bridge — River gauge, 2026–2026Ballyloskey — River gauge, 2026–2026Malin Head — River gauge, 2026–2026Listowel Bridge — River gauge, 2026–2026
400 of 450 locations drawn, sampled evenly across the network so the map stays a reasonable size and still shows where coverage is dense and where it is thin. Every location is held in full and reachable through the data.

What is measured

MeasurementLocationsValues held
River level45015,621

What kind of place is monitored

KindLocations
River gauges450

Elsewhere

All networks · the underlying series are published through the dataset catalogue and the static API.

Hydrionis would like to measure which pages are read, using Google Analytics. It stores an identifier on your device, so we only do it if you agree. Nothing is stored if you decline, and the site works identically either way. See cookies for what is set and how to change your mind.