Porth Ceiriad on the Llyn Peninsula is a world-class wave spot for adventurous wingers and windsurfers.
This raw and spectacular beach offers consistent Atlantic groundswell and clean winds, providing a high-performance arena for wave riding. The spot is protected from the wind by high cliffs, which keeps the wave faces clean even in strong gales. Due to its exposure and technical access, Porth Ceiriad requires self-sufficiency and high-level wave skills.
SW, S (Prevailing winds are most consistent)
15-22 knots for stable flight; 25 knots + for advanced wave riding.
Best at mid-tide (+/- 2 hrs). At high tide, waves hit the cliff base; at low tide, reefs are revealed.
14 Day - Tide Calendar for Porth Ceiriad →Powerful Atlantic groundswell (1.0m - 2.5m).
Overall
Vibe & Crowds
Hardy and soulful. A community that values the spot's raw beauty and power. Low. One of the quietest world-class wave spots in Wales.
Suitable For
Powerful swell and technical access require high-level skills.
Negatives & Hazards
Powerful Atlantic swell; strong tidal currents; hazardous shore dump at high tide; falling rocks from cliffs.
Porth Ceiriad
Open in Google MapsRemote access; requires a steep walk down many steps; sandy launch.
Sandy bottom.
Year-round; winter gales provide elite wave sessions.
If you have any insights or information to add to this spot guide, drop us a note at support@knotnow.co.uk
Wind and weather forecasts for Porth Ceiriad are provided to help you plan your sessions. Conditions at this coastal location can change quickly, so always check the actual conditions when you arrive and trust your judgment. These forecasts are for recreational planning—always prioritize safety and verify conditions yourself before heading out. Tidal predictions for Porth Ceiriad are based on the nearest primary station at PORTH YSGADEN (15.43km away). Local conditions can vary from these predictions due to coastal topography and weather effects. Always verify tidal conditions on arrival—these predictions are for planning purposes only, not for navigational use or critical safety decisions.