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Porth Ysgo

Safety warning

No lifeguard service
There is no lifeguard cover here, and the cove is reached down a steep path with steps. Local beach guidance
Tide-dependent
The sandy beach is at its best around low tide. Check the tide before setting out. Local beach guidance
Not a designated bathing water
Not monitored under the Bathing Water Directive, so there is no classification, no sampling and no pollution alerting for it. NRW bathing water register

Not monitored

Porth Ysgo is not a designated bathing water, so no water-quality classification, sampling or pollution alerting applies to it and we cannot tell you anything about the water today. There is no lifeguard service, and the sandy beach is best reached around low tide.

Checked against the Environment Agency (England).

Sea conditions

Water temperature

19.4°C

Mild by Irish and British standards

Wave height

0.4 m

Significant wave height offshore; inshore conditions vary.

Tide

Going out

  • Low water around UTC
  • High water around UTC

Modelled values, not measurements — coastal water often differs from the open-sea model, and tide times are approximate to within about half an hour. Use official tide tables for anything that depends on precise timing.

About this spot

Porth Ysgo is a secluded cove between Aberdaron and Porth Neigwl on the Llŷn Peninsula, reached by a path and steps down from the National Trust car park.

Common questions

Can you swim at Porth Ysgo right now?
Porth Ysgo is currently marked "Not monitored". Porth Ysgo is not a designated bathing water, so no water-quality classification, sampling or pollution alerting applies to it and we cannot tell you anything about the water today. There is no lifeguard service, and the sandy beach is best reached around low tide. This reflects the latest data published by the Environment Agency (England). Conditions change quickly — always assess the water yourself before entering.

Nearby swimming spots

© Environment Agency copyright and/or database right 2026. All rights reserved.

Contains Natural Resources Wales information © Natural Resources Wales and database right 2026. All rights reserved.

Contains SEPA data © Scottish Environment Protection Agency, licensed under the Open Government Licence v3.0.

Contains DAERA and Ordnance Survey of Northern Ireland information, licensed under the Open Government Licence v3.0.

Sea temperature, wave and tide data from Open-Meteo.com, licensed under CC BY 4.0. Modelled values, not measurements.