River Gauge Information for Gwynedd

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