River Neath · Afon Nedd
Both gauges on the River Neath are normal and steady.
Read from 2 river-level gauges at 12:00 on 28 October 2026 GMT, and read again every fifteen minutes.
See the River Neath on the live map →Every gauge on the River Neath, right now
| Gauge | km above the mouth |
Level now |
Against its record |
Percentile | Trend |
|---|---|---|---|---|---|
| Resolvennear Melincourt | - | 0.80 m | Normal | 83rd | ▬steady |
| Glyn Neathnear Glynneath (Glyn-nedd) | - | 0.89 m | Normal | 76th | ▬steady |
The percentile is where a gauge's latest reading sits in its own record of readings, not how full the channel is. A river sits low most of the time, so a high percentile takes surprisingly little water: at Beddgelert on the Glaslyn, with thirty-six years of record, the ninety-fourth percentile is about 1.05 m - 1.38 m below the highest level ever recorded there. A hyphen in the first column means the reach that gauge stands on has no path to the sea in Ordnance Survey Open Rivers - a lake, a culverted stretch or the edge of the mapped area can interrupt a channel - so there is no distance down the river to measure.
The course of the River Neath
About this river
From its highest reach down to its mouth near Crymlyn Burrows, the Afon Nedd runs 16 km. The lowest 12 km are tidal, where a gauge reads the tide as much as the river. The course above is drawn in two weights: the bright line is where Ordnance Survey Open Rivers calls the channel the Afon Nedd, and the faint line, about 25 km of it, is the same water running under another name, past a lake or a weir pool. Its gauges hold between 8 and 43 years of readings, and that is what today's levels are compared with.
- Neath Tidal - a rain gauge near Ty’n-y-caeau, not a river level
- Resolven - a rain gauge near Resolfen, not a river level