Meduseo is a free jellyfish forecast service. It provides real-time jellyfish presence on beaches using a model combining social media data and community reports. Available in France, Spain, Italy, Australia and many other countries.

Is Meduseo data reliable?

Yes. Data was compared with dated and localized press articles. For example, the massive jellyfish presence in La Ciotat (Nov 2019) and Saint-Tropez (Mar 2020) was correctly detected by Meduseo, sometimes even before the media. The score ranges from 0 (absence) to 100 (massive presence).

Are there jellyfish on beaches today?

Jellyfish have been recently reported on some locations: Nerja, Biguglia, Ayamonte, Numana, Bretignolles-sur-Mer. Check the Meduseo map for the situation at your beach.

How can I report jellyfish presence?

You can report jellyfish presence directly on the Meduseo website or via the mobile app (Android and iPhone). Each report improves the quality of information for all swimmers.

Meduseo - Jellyfish map

Latest reports

Date	Location	Density	Species
18/09 21:51	Nerja 🏖 Playa Carabeo	very little	Pelagia Noctiluca
18/09 19:14	Biguglia 🏖 GPS	none
18/09 18:05	Ayamonte 🏖 Playa de Isla Canela	few
18/09 17:34	Numana 🏖 Spiaggia Marcelli	very little
18/09 17:31	Bretignolles-sur-Mer 🏖 Plage des Dunes	very little	Rhizostoma octopus
18/09 17:31	Saint-Raphaël 🏖 Plage d'Agay	none
18/09 17:29	Begur 🏖 Platja sa Tuna	very little
18/09 17:17	Antibes 🏖 Plage de la Salis	none
18/09 17:14	Pirou 🏖 unknown	a lot	Rhizostoma octopus
18/09 17:08	Toulon 🏖 Plages du Mourillon	none