Cardiff sea weather, tide times and watersports outlook

Cardiff sea conditions for swimming, paddleboarding and kayaking

Live Cardiff forecast: Today and tomorrow’s temperature, rain chance, wind speed and direction, tide times, water-quality checks and activity windows load in the outlook above.

Cardiff’s nearby waterfront is shaped by the Severn Estuary, Cardiff Bay and the Bristol Channel coast beyond the city. Water movement, mud and wide tidal variation can differ between the bay, river approaches and open beaches, so match the forecast to the exact place you intend to visit.

Local practical checks

• Check whether your destination is Cardiff Bay, an estuary approach or an open South Wales beach.
• Allow for large tidal changes and estuary channels when planning access and travel.

The outlook uses provider-backed weather and tide information for Cardiff and the nearby South Wales coast. Use the five-day selector to compare the returned forecast days. A suggested window is planning information, not a safety decision.

Understand the conditions

Nearby coastal forecasts