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Aeron water levels

2 gauges from Talsarn River Station to Aberaeron River Station. None is above its typical high. 1 storm overflow upstream is discharging now. Gauges in Ceredigion; levels are checked every 15 minutes.

2gauges
0above normal
1overflow upstream discharging

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Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
Talsarn River Station—0.79 m 17m agoWithin its typical range—
Aberaeron River Station 12.5 km by riverAberaeron0.73 m 17m agoWithin its typical range—

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.

Contains OS data © Crown copyright and database rights 2026.

Gauged tributaries

Streams and rivers with a gauge whose water joins the Aeron above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.

No gauged tributary joins the Aeron above Aberaeron River Station on the river map. Streams without a gauge are not counted here.

Where the Aeron goes

No gauge below Aberaeron River Station is known on the river map.

Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.

Streams without a gauge

Named streams on the river map that flow into the Aeron 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 Mydr (joins about 2.7 km above Aberaeron River Station)

Storm overflows upstream

2 storm overflows are traced upstream of Aberaeron River Station, the Aeron’s lowest gauge on the river map: on the Aeron itself, on its gauged tributaries, and on smaller streams that join above there.

  • 1 reports discharging now
  • 1 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 Aberaeron River Station: 238 spills over 2,869 hours in total, across all 2.

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 Aeron includes the smaller streams that join it there.

Above Talsarn River Station, the Aeron’s highest gauge1 overflow · 1 discharging now
  • Llangeitho WwTW Overflow Discharging now since
    Dwr Cymru Welsh Water · into River Aeron · 8.8 km by river above Talsarn River Station · 2025: 116 spills, 2,124 h
Between Talsarn River Station and Aberaeron River Station1 overflow
  • Mydroilyn WwTW Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Afon Mydr · 10.0 km by river above Aberaeron River Station · 2025: 122 spills, 746 h

Near these gauges, connection not known

Within 3 km of one of the Aeron’s gauges in a straight line, but the river map cannot say whether their water reaches it.

  • Peniel Lane Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Coastal Waters - Aberaeron · 550 m from Aberaeron River Station in a straight line · discharges to the sea, an estuary or tidal water · 2025: 32 spills, 105 h
  • Heol Y Farchnad Road Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Nant Aeron · 600 m from Aberaeron River Station in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 1 spill, 0.3 h
  • Waterloo Street Aberaeron Overflow Not discharging
    Dwr Cymru Welsh Water · into Cardigan Bay Central · 810 m from Aberaeron River Station in a straight line · discharges to the sea, an estuary or tidal water · 2025: 9 spills, 9.5 h
  • Harbour Lane Junction Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Aberystwyth Harbour · 820 m from Aberaeron River Station in a straight line · discharges to the sea, an estuary or tidal water · 2025: 52 spills, 188 h
  • Aberaeron Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Coastal Water - Cardigan Bay · 1.4 km from Aberaeron River Station in a straight line · discharges to the sea, an estuary or tidal water · 2025: 67 spills, 942 h
  • Ffos-Y-Ffin Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Ceri Brook · 1.9 km from Aberaeron River Station in a straight line · its watercourse is not on the river map · 2025: 40 spills, 132 h
  • Ystrad Aeron Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Tributary Of Afon Aeron · 1.9 km from Talsarn River Station in a straight line · no mapped watercourse close enough to be sure · 2025: 60 spills, 188 h
  • Aberarth Storm Overflow Not discharging
    Dwr Cymru Welsh Water · into Coastal Water - Cardigan Bay · 2.6 km from Aberaeron River Station in a straight line · discharges to the sea, an estuary or tidal water · 2025: 15 spills, 159 h

A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →

Live status: © Dŵr Cymru Welsh Water, from its Storm Overflow Map. Annual figures for Wales: Dŵr Cymru Welsh Water’s return to Natural Resources Wales, as compiled by The Rivers Trust, Open Government Licence.