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: Cullera, Asnelles, Lion-sur-Mer, Venice, Bonifacio. 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
05/10 21:33	Cullera 🏖 Platja de Sant Antoni	few	Rhizostoma octopus
05/10 20:56	Asnelles	few	Other
05/10 18:53	Lion-sur-Mer 🏖 unknown	very little	Other
05/10 18:27	Venice 🏖 Venice Lido	few
05/10 18:00	Bonifacio 🏖 Stagnolo	none
05/10 17:39	Santander 🏖 Segunda Playa de El Sardinero	very little	Physalia physalis
05/10 17:36	Antibes 🏖 Plage des Ondes	none
05/10 16:47	Cullera 🏖 Platja del Racó	a lot	Rhizostoma octopus
05/10 16:17	Carry-le-Rouet 🏖 Plage du Cap Rousset	none
05/10 16:00	Ouistreham	very little	Rhizostoma octopus