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Can I swim at Marine Lake, Rhyl? Denbighshire, Wales · Coastal
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About this bathing water
Rating for last season Sufficient (2025)
Water Coastal
Area Denbighshire, Wales
Monitored outfalls within 5km 15 (nearest 0.5km) Marine Lake, Rhyl was rated Sufficient for 2025 — the minimum passing grade in the Bathing Water Regulations. That grade comes from bacterial samples taken over several seasons, so it describes the beach's record rather than the water on any given day.
Natural Resources Wales issues a daily pollution risk forecast during the bathing season, and Dŵr Cymru publishes live storm overflow status.
Other beaches nearby Check the official source
Can I Swim? shows official warnings, live sewage spill data and rainfall for
every designated bathing water in Britain and Ireland. It is not an official source: if a sign
at the beach says otherwise, believe the sign.
Where the data comes from
Environment Agency and Natural Resources Wales — daily pollution risk forecasts,
open pollution incidents and bathing water classifications
SEPA and DAERA — Scottish daily predictions and Northern Irish sampling
The EPA and local authorities in Ireland — statutory bathing restrictions
Eleven water companies — live storm overflow status for 18,600 monitored outfalls
Open-Meteo — rainfall
Contains public sector information licensed under the Open Government
Licence v3.0. Water company data under CC BY 4.0. How this works and
what it can't tell you .