Plage de la Grande Casse (La Tranche-sur-Mer)

Coast, La Tranche-sur-Mer, Vendée. We calculate high and low water here from an ocean tide model — accurate to about 5 cm on open coasts, considerably less in tidal flats and river mouths. This spot is not in any official register — there are no water samples and no classification. Dogs are allowed here on a lead.

Common questions about this spot

How warm is the water?

Water temperature 14.2 °C — NOAA Geo-Polar Blended (5 km), measured 04/11/2026 13:00.

When is high and low tide?

High tide at 15:41, Low tide at 21:12 (Local time at the spot).

Can I bring my dog?

Dogs are allowed here on a lead.

Swimming spots in La Tranche-sur-Mer · Vendée · Swimming spots in France · Atlantic Ocean · On the map