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🌊 Tide going out · high water in ~4h

Aberystwyth TideGauge

Afon Rheidol 🌊 Tidal
Ystwyth Group catchment • Aberystwyth • Ceredigion • ID: NRW_H063003746 • Level
This gauge is tidally influenced — levels rise and fall with each tide, so rapid changes here are normal and don't necessarily indicate flooding.
(19m ago) • 4 readings/hr • 1 view

Set water level alerts

Get notified about Aberystwyth TideGauge — tick as many as you like, they all share the notify settings below.

You'll be notified when this gauge is rising more than 0.10 m/hr — a sign of rapidly increasing water levels.

Each one is saved as its own alert — pause or remove them individually any time.

Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA/NRW data and are best-efforts. Terms

Current Level
0.632 m?
▼ Easing
24h Max
3.391 m
24h Min
0.630 m
Typical Range
-
Measured rhythm
every 12.3 hours · about 1.7 m
Highest Recorded
5.92 m
8 Apr 2025
Since Feb 2024
Current level is 11% of this
Wales — NRW flood warnings

Wales: 0 severe flood warnings, 0 flood warnings and 5 flood alerts in force. Last successful check: 2026-10-27 17:03:02 UTC.

This gauge’s verified location is inside the area of:

Messages: Natural Resources Wales flood warnings API. Warning-area boundaries: Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Reused under the Open Government Licence v3.0. Boundaries from DataMapWales.

🚽 Sewage overflows nearby

Recent Water Levels

🌍 floodradar.co.uk
1 day

Flood predictions aren't generated for tidal gauges — their levels are driven by the tide, not by catchment rainfall, so the forecast models would have no skill here.

Recent Readings

Falling · -0.8 cm over 5h
27 Oct 16:45 ▬ steady 0.632 m
27 Oct 16:30 ▼ -0.2 cm 0.632 m
27 Oct 16:15 ▲ +0.4 cm 0.634 m
27 Oct 16:00 ▼ -0.3 cm 0.630 m
27 Oct 15:45 ▼ -0.3 cm 0.633 m
27 Oct 15:30 ▬ steady 0.636 m
27 Oct 15:15 ▲ +0.2 cm 0.636 m
27 Oct 15:00 ▲ +0.1 cm 0.634 m
27 Oct 14:45 ▼ -0.4 cm 0.633 m
27 Oct 14:30 ▬ steady 0.637 m
27 Oct 14:15 ▲ +0.3 cm 0.637 m
27 Oct 14:00 ▼ -0.8 cm 0.634 m
27 Oct 13:45 ▲ +0.2 cm 0.642 m
27 Oct 13:30 ▲ +0.1 cm 0.640 m
27 Oct 13:15 ▼ -0.3 cm 0.639 m
27 Oct 13:00 ▬ steady 0.642 m
27 Oct 12:45 ▬ steady 0.642 m
27 Oct 12:30 ▲ +0.3 cm 0.642 m
27 Oct 12:15 ▼ -0.1 cm 0.639 m
27 Oct 12:00 0.640 m

Station Details

  • Monitoring Station: Aberystwyth TideGauge
  • Watercourse: Afon Rheidol
  • Nearest Town: Aberystwyth
  • County: Ceredigion
  • Nearest reservoir: Llyn Craig y Pistyll (14.6 km) · 100.0% full (as of 9 Dec 2024)
  • Coordinates: 52°24'40"N 4°5'7"W (52.411100, -4.085200)
  • Open in: Google Maps · Apple Maps (opens your maps app)
  • Status: Active
  • Station Type: Tidal / coastal station (inferred)
Technical details: references, datum, range, flow archive
  • Station Reference: NRW_H063003746
  • NRW telemetry ID: H063003746 Water Level Stage
  • Parameter: Level
  • Unit: m?
  • Typical rise rate: 132 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~12 min (measured reading→publication lag)
  • Tidal: 🌊 Yes — levels follow the tide
  • Lock / structure: No
  • Catchment Area: Ystwyth Group

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Nearby Stations

Gauges connected to this river, and others nearby. A distance “by river” follows the river on the map; any other is in a straight line.

Connected upstream

Same river, order estimated

Same river system, separate branch

Distances by river: OS Open Rivers. Contains OS data © Crown copyright and database rights 2026.

💧 Storm overflows upstream of this gauge

None of the storm overflows FloodRadar holds is traced upstream of this gauge on the mapped river network. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow. Those nearby are listed below.

Nearby, connection not known

Within 6 km in a straight line, but the river map cannot say whether their water passes this gauge.

💧
Dwr Cymru Welsh Water · into River Rheidol · 10 m away in a straight line · discharges into a tidal reach, where the water moves both ways
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Rheidol · 80 m away in a straight line · discharges into a tidal reach, where the water moves both ways
Not discharging now · last
💧
Fifth Avenue Storm Overflow🏊 Bathing water
Dwr Cymru Welsh Water · into River Rheidol · 960 m away in a straight line · discharges into a tidal reach, where the water moves both ways
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Rheidol · 1.3 km away in a straight line · discharges into a tidal reach, where the water moves both ways
Not discharging now
💧
Dwr Cymru Welsh Water · into Plas Crug Ditch · 1.3 km away in a straight line · no mapped watercourse close enough to be sure
Not discharging now · last
💧
Clarach Bay Overflow🏊 Bathing water
Dwr Cymru Welsh Water · into River Clarach · 2.5 km away in a straight line · its water cannot be followed on the map
Not discharging now · last
💧
Clarach WwTW Storm Overflow🏊 Bathing water
Dwr Cymru Welsh Water · into River Clarach · 3.1 km away in a straight line · its water cannot be followed on the map
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Clarach · 4.6 km away in a straight line · its water cannot be followed on the map
Not discharging now · last

2 other overflows within 6 km are downstream of this gauge or on another branch of the river network, so they are not listed.

These are the water companies' monitor statuses; a spill does not by itself explain a change in the gauge level. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels. Sewage & storm overflows →

Contains OS data © Crown copyright and database rights 2026.

Rainfall & Weather

Loading rainfall and weather data...

Frequently asked questions

Is the Afon Rheidol at Aberystwyth TideGauge flooding today?

The latest recorded level is 0.63m. Compare it with the recent history on the chart above to judge whether levels are unusually high.

Is the river level rising or falling at Aberystwyth TideGauge?

Based on the most recent readings, the level is currently falling slightly. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

How often is this river level data updated?

Readings are supplied by the Natural Resources Wales gauge. FloodRadar checks for updates roughly every 15 minutes; the timestamp above shows how recent the latest available reading is.

Embed this gauge on your website

Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.

Preview
🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →

River readings supplied by Natural Resources Wales. FloodRadar checks for updates every 15 minutes; the reading timestamp shows the latest available observation.

The Environment Agency’s flood-zone map covers England. In Wales the Area map’s Flood Zones layer is Natural Resources Wales’s Flood Map for Planning, drawn by FloodRadar from its copy of NRW’s shapes where it holds them: an empty patch is not an absence of flood risk. Check NRW for official Welsh flood warnings and information.