Click on a monitoring station name to view live and historical river data.
Station
Parameter
River
Town
Afon Rhyd Y Valley At Dwyran River Level (River Level)
Llanfairpwllgwyngyll
Barmouth Water Level (Tidal Level)
Barmouth Water Level (Tidal Level)
Cefni At Llangefni River Level (River Level)
Llangefni
Cerist At Llawr Cae River Level (River Level)
Machynlleth
Colwyn At Hafod Wydr River Level (River Level)
Caernarfon
Dee At Bala River Level (River Level)
Bala
Dee At Dee Bridge River Level (River Level)
Bala
Dee At New Inn River Level (River Level)
Bala
Dwyfor At Garndolbenmaen River Level (River Level)
Garndolbenmaen
Dyfi At Dyfi Bridge River Level (River Level)
Machynlleth
Dysynni At Pont Y Garth River Level (River Level)
Tywyn
Erch At Pencaenewydd River Level (River Level)
Pwllheli
Glaslyn At Beddgelert River Level (River Level)
Caernarfon
Gwyrfai At Bontnewydd River Level (River Level)
Caernarfon
Llyfni At Pont Y Cim River Level (River Level)
Caernarfon
Mawddach At Tyddyn Gwladys River Level (River Level)
Dolgellau
Peris At Nant Peris River Level (River Level)
Caernarfon
River Braint At Dwyran River Level (River Level)
Llanfairpwllgwyngyll
River Gelyn Level At Cynefail River Level (River Level)
Bala
Seiont At Peblic Mill River Level (River Level)
Caernarfon
Tryweryn At Bala Weir X River Level (River Level)
Bala
Wnion At Dolgellau River Level (River Level)
Dolgellau