River Wnion · Afon Wnion
The only gauge on the River Wnion is high and steady.
Read from one river-level gauge at 12:00 on 28 October 2026 GMT, and read again every fifteen minutes.
See the River Wnion on the live map →Every gauge on the River Wnion, right now
| Gauge | km above the mouth |
Level now |
Against its record |
Percentile | Trend |
|---|---|---|---|---|---|
| Afon Wnionnear Dolgellau | 3 | 1.90 m | High | 96th | ▬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 Wnion
About this river
From its highest reach down to its mouth near Llanelltyd, the Afon Wnion runs 19 km. Its gauge holds 14 years of readings, and that is what today's level is compared with.
This is not a flood-warning service. For flood warnings in Wales go to
Natural Resources Wales; in England, the
Environment Agency. In an emergency
call 999. The map cannot see the sea, surface water, drains, or any one address.