Are there jellyfish at Fos-sur-Mer today?

No jellyfish have been reported at Fos-sur-Mer today. Last updated: 04/05/2026 11:03.

What jellyfish species are found at Fos-sur-Mer?

No specific species have been recently reported at Fos-sur-Mer. Check Meduseo for real-time updates.

Is it safe to swim at Fos-sur-Mer today?

Swimming at Fos-sur-Mer appears safe today, no jellyfish reported. Stay alert and check Meduseo for real-time updates.

Fos-sur-Mer, France

No information 18.3°C 0.06 m/s

Last updated : 04/05/2026 06:00

Beach (3)

Grande Plage La Grande Plage Lafarge

Nearby cities

Port-de-Bouc

Latest reports

No recent reports

Jellyfish density evolution

Explore

7 days
30 days

Water temperature

Beach (if available)

Observation position

Date of observation

How many jellyfish did you see?

Identification Optional

Help us keep reliable data! If you're not sure about the species, just indicate the size, the color or add a photo.

What did they look like?

Other

Pelagia

5 - 10 cm

Aurelia

25 - 40 cm

Rhizostoma

20 - 90 cm

Cotylorhiza

30 - 40 cm

Chrysaora

15 - 30 cm

Velella

4 - 8 cm

Description rapide

Estimated size :

Dominant color :

Take a photo

The ultimate proof for identification

Comments Optional

Date
Beach
Comments
GPS
Jellyfish size
Jellyfish color
Certified account	Certified contributor
Photo