River Rheidol · Afon Rheidol
The River Rheidol is high and steady at Aber-ffrwd; normal and steady at Pendre.
Read from 2 river-level gauges at 12:00 on 28 October 2026 GMT, and read again every fifteen minutes.
See the River Rheidol on the live map →Every gauge on the River Rheidol, right now
| Gauge | km above the mouth |
Level now |
Against its record |
Percentile | Trend |
|---|---|---|---|---|---|
| Cwm Rheidolnear Aber-ffrwdregulated | 17 | 1.10 m | High | 98th | ▬steady |
| Llanbadarnnear Pendre | 3 | 1.09 m | Normal | 94th | ▬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.
The course of the River Rheidol
About this river
From its highest reach down to its mouth near Trefechan, the Afon Rheidol runs 35 km. The lowest 2 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 Rheidol, and the faint line, about 15 km of it, is the same water running under another name, past a lake or a weir pool. Its gauges hold between 9 and 19 years of readings, and that is what today's levels are compared with.
- Dinas - a rain gauge near Ponterwyd, not a river level
- Cwm Rheidol - a rain gauge near Cwmbrwyno, not a river level
- Aberystwyth TideGauge - a rain gauge near Trefechan, not a river level