4 gauges from Pontrydfendigaid No1 River Station to Glan Teifi River Station. None is above its typical high. 7 storm overflows upstream are discharging now. Gauges in Ceredigion, Pembrokeshire; levels are checked every 15 minutes.
Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.
Streams and rivers with a gauge whose water joins the Teifi above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Its water passes Pont Llanio River Station and every gauge below it on the Teifi. It does not pass Pontrydfendigaid No1 River Station or the gauges above it.
Named streams on the river map that flow into the Teifi and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.
Afon Duar (joins about 16 km above Llanfair River Station)
Afon Grannell (joins about 20 km above Llanfair River Station)
Nant Bargod (joins about 17 km above Glan Teifi River Station)
Nant Cledlyn (joins about 9.9 km above Llanfair River Station)
Storm overflows upstream
39 storm overflows are traced upstream of Glan Teifi River Station, the Teifi’s lowest gauge on the river map: on the Teifi itself, on its gauged tributaries, and on smaller streams that join above there.
7 report discharging now
32 not discharging
0 offline or silent: 0 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Glan Teifi River Station: 2,946 spills over 32,507 hours in total, across the 35 that have a figure. 1 had no usable monitor data that year; 3 have no 2025 figure.
Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the Teifi includes the smaller streams that join it there. Where a stretch or a tributary has more than 4, the 3 discharging now or nearest its gauge are listed, the rest are counted, and every one is in that gauge’s “Upstream of here” list. Show every overflow in every stretch →
Between Pontrydfendigaid No1 River Station and Pont Llanio River Station2 overflows
Pontrhydfendigaid Storm OverflowNot discharging Dwr Cymru Welsh Water · into River Teifi · 21.5 km by river above Pont Llanio River Station · 2025: 52 spills, 133 h
Tregaron WwTW Storm OverflowNot discharging Dwr Cymru Welsh Water · into River Teifi · 5.9 km by river above Pont Llanio River Station · 2025: 110 spills, 2,129 h
Between Pont Llanio River Station and Llanfair River Station15 overflows · 3 discharging now
Silian Storm OverflowDischarging now since Dwr Cymru Welsh Water · into Afon Denys · 32.9 km by river above Llanfair River Station · 2025: 93 spills, 2,038 h
Alltyblaca OverflowDischarging now since Dwr Cymru Welsh Water · into River Teifi · 18.6 km by river above Llanfair River Station · 2024: 181 spills, 3,587 h
Llanybydder Cattle Market Storm OverflowDischarging now since Dwr Cymru Welsh Water · into River Teifi · 14.3 km by river above Llanfair River Station · 2025: 84 spills, 1,087 h
Between Llanfair River Station and Glan Teifi River Station19 overflows · 3 discharging now
Pentrecwrt WwTW Storm OverflowDischarging now since Dwr Cymru Welsh Water · into River Teifi · 22.9 km by river above Glan Teifi River Station · 2025: 275 spills, 2,280 h
Rhydfach Storm OverflowDischarging now since Dwr Cymru Welsh Water · into River Teifi · 18.8 km by river above Glan Teifi River Station · 2025: 149 spills, 3,097 h
Aberbanc Storm OverflowDischarging now since Dwr Cymru Welsh Water · into Afon Cynllo · 18.0 km by river above Glan Teifi River Station · 2025: 139 spills, 2,782 h
Tyweli, above Llandyssul River Stationjoins the Teifi above Glan Teifi River Station3 overflows · 1 discharging now
Pencader Bridge Storm OverflowNot discharging Dwr Cymru Welsh Water · into River Talog · 6.3 km by river above Llandyssul River Station · 2025: 41 spills, 294 h
Pencader Storm OverflowNot discharging Dwr Cymru Welsh Water · into Afon Tyweli · 6.2 km by river above Llandyssul River Station · 2025: 43 spills, 338 h
Pencader WwTW Storm OverflowDischarging now since Dwr Cymru Welsh Water · into Afon Tyweli · 5.9 km by river above Llandyssul River Station · 2025: 57 spills, 356 h