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Neath Tidal River Station

Neath 🌊 Tidal
Mid-Glamorgan Group catchment • Neath Port Talbot • ID: NRW_H058000013 • 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.
(32m ago) • 4 readings/hr • 0 views

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Get notified about Neath Tidal River Station — 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.

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

Current Level
4.948 mAOD?
Trend unavailable
24h Max
5.313 mAOD
24h Min
1.306 mAOD
Typical Range
-
Measured rhythm
every 12.3 hours · about 2.3 m
Highest Recorded
6.16 mAOD
12 Mar 2024
Since Feb 2024
Wales — NRW flood warnings

Wales: 0 severe flood warnings, 0 flood warnings and 5 flood alerts in force. Last successful check: 2026-10-28 07:03:01 UTC.

This gauge sits within about 10 m of the boundary of 1 live NRW message, so we can’t say whether it applies here. Check the message on Natural Resources Wales.

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

Rising · +360 cm over 5h
28 Oct 06:45 ▲▲ +19 cm 4.948 mAOD
28 Oct 06:30 ▲▲ +27 cm 4.763 mAOD
28 Oct 06:15 ▲▲ +36 cm 4.488 mAOD
28 Oct 06:00 ▲▲ +45 cm 4.131 mAOD
28 Oct 05:45 ▲▲ +52 cm 3.677 mAOD
28 Oct 05:30 ▲▲ +54 cm 3.155 mAOD
28 Oct 05:15 ▲▲ +69 cm 2.615 mAOD
28 Oct 05:00 ▲▲ +55 cm 1.927 mAOD
28 Oct 04:45 ▼ -1 cm 1.374 mAOD
28 Oct 04:30 ▼ -1 cm 1.386 mAOD
28 Oct 04:15 ▲ +2 cm 1.397 mAOD
28 Oct 04:00 ▲ +1 cm 1.376 mAOD
28 Oct 03:45 ▼ -0.7 cm 1.361 mAOD
28 Oct 03:30 ▼ -0.2 cm 1.368 mAOD
28 Oct 03:15 ▲ +2 cm 1.370 mAOD
28 Oct 03:00 ▼ -2 cm 1.348 mAOD
28 Oct 02:45 ▲ +0.4 cm 1.370 mAOD
28 Oct 02:30 ▲ +2 cm 1.366 mAOD
28 Oct 02:15 ▲ +0.4 cm 1.350 mAOD
28 Oct 02:00 1.346 mAOD

Station Details

  • Monitoring Station: Neath Tidal River Station
  • Watercourse: River Neath
  • County: Neath Port Talbot
  • Nearest reservoir: Llyn Fawr (17.5 km) · 94.9% full (as of 9 Dec 2024)
  • Coordinates: 51°39'52"N 3°48'27"W (51.664400, -3.807600)
  • 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_H058000013
  • NRW telemetry ID: H058000013 Water Level Stage
  • Parameter: Level
  • Unit: mAOD?
  • Typical rise rate: 216 cm/hr (p95 sustained over 90 days)
  • Typical data delay: ~12 min (measured reading→publication lag)
  • Tidal: 🌊 Yes — levels follow the tide
  • Distance to the sea: at tidal water here — about 9.9 km by river (estimated along OS Open Rivers)
  • Lock / structure: No
  • Catchment Area: Mid-Glamorgan 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

Nearby

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

💧 Storm overflows upstream of this gauge

Storm overflows whose water reaches this gauge on the mapped river network, nearest first by distance along the river. The status is each water company's monitor: it says whether an overflow is discharging, not how much or what it contains.

24 storm overflows are traced upstream of this gauge, the nearest 1.0 km away along the river. 4 report discharging now, 20 report not discharging.

💧
Dwr Cymru Welsh Water · into River Neath · 1.0 km upstream along the river
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Neath · 1.0 km upstream along the river
Not discharging now · last
💧
Dwr Cymru Welsh Water · into Gnoll Brook · 1.6 km upstream along the river
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Neath · 3.3 km upstream along the river
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Dulais · 3.5 km upstream along the river
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Neath · 6.8 km upstream along the river
Not discharging now · last
💧
Dwr Cymru Welsh Water · into River Dulais · 9.0 km upstream along the river
Discharging now since
💧
Dwr Cymru Welsh Water · into River Dulais · 9.4 km upstream along the river
Discharging now since

16 more further upstream, up to 29.5 km away along the river.

Also discharging now further upstream: Pontneddfechan WwTW Storm Overflow (21.4 km), Hirwaun Industrial Estate WwTW Storm Overflow (25.7 km).

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 Estuarial Waters Of The River Neath · 100 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 Estuarial Waters Of Afon Nedd · 140 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 Neath · 280 m away in a straight line · discharges into a tidal reach, where the water moves both ways
Not discharging now
💧
Dwr Cymru Welsh Water · into Estuarial Waters Of Afon Nedd · 440 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 Neath · 600 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 Neath · 870 m away in a straight line · no mapped watercourse close enough to be sure
Not discharging now · last
💧
Dwr Cymru Welsh Water · into Estuarial Waters Of Afon Nedd · 1.1 km 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 Tributary Of Tennant Canal · 1.1 km away in a straight line · discharges into a canal
Not discharging now · last

36 more within 6 km whose connection is not known.

6 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

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Frequently asked questions

Is the River Neath at Neath Tidal River Station flooding today?

The latest recorded level is 4.95mAOD. Compare it with the recent history on the chart above to judge whether levels are unusually high.

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.

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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.