Are there jellyfish at Plage des Demoiselles today?

No jellyfish have been reported at Plage des Demoiselles (Saint-Jean-de-Monts) today. Last updated: 14/07/2026 11:10.

Is it safe to swim at Plage des Demoiselles today?

Swimming at Plage des Demoiselles appears safe today, no jellyfish reported. Check Meduseo for updates.

No information 21.4°C

Last updated : 10/07/2026 12:00

Date	Density	Species	Comments
09/07 12:03	few	Velella Velella	Observation : Des petites méduses transparentes, d’environ 3 à 4 cm de diamètre,