Skip to content
Species
First Aid
Explore
Information
🇬🇧
🇫🇷 FR
🇬🇧 EN
🇪🇸 ES
🇮🇹 IT
🇳🇱 NL
Login
View all alerts
Praia do Dafundo,
Oeiras, Portugal
No information
18.0°C
Last updated :
18/09/2026 18:00
Contribute
Worldwide
Portugal
Oeiras
Praia do Dafundo
Beach
Praia do Lagoal
Praia da Cruz Quebrada
Praia do Dafundo
Praia do Forte
Praia de Caxias
Giribita
Praia da Laje
Praia de Paço de Arcos
Praia Velha
Unnamed beach
Praia de Santo Amaro
Unnamed beach
Praia das Fontaínhas
Praia da Torre
Praia de Algés
Praia de Caxias
Latest reports
No recent reports
Jellyfish density evolution
7 days
30 days
Report detail
Date
Beach
Comments
GPS
Jellyfish size
Jellyfish color
Water temperature
Certified account
Certified contributor
Photo
Report jellyfish
Beach (if available)
By beach
My position
Point on the map
-- Beach (if available) --
Praia do Lagoal
Praia da Cruz Quebrada
Praia do Dafundo
Praia do Forte
Praia de Caxias
Giribita
Praia da Laje
Praia de Paço de Arcos
Praia Velha
Unnamed beach
Praia de Santo Amaro
Unnamed beach
Praia das Fontaínhas
Praia da Torre
Praia de Algés
Praia de Caxias
My position
Observation position
Date of observation
How many jellyfish did you see?
none
very little
few
a lot
Water temperature
Optional
Optional. Enter a value between 8.0 and 30.0°C with at most one decimal.
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 N.
5 - 10 cm
Aurelia A.
25 - 40 cm
Rhizostoma O.
20 - 90 cm
Physalia P.
10 - 30 cm
Chrysaora H.
15 - 30 cm
Velella V.
4 - 8 cm
Carybdea M.
3 - 5 cm
Description rapide
Estimated size :
Coin
Hand
Ball / Plate +
Dominant color :
Clear
Pink / Violet
Brown / Yellow
Blue
Take a photo
Choose from gallery
The ultimate proof for identification
By submitting a photo, you agree to our
terms of use
.
Comments
Optional
Create your free account
Track your reports, add favorites and access exclusive features.
Ad-free
100% free
Create my account
Learn more
Close
Photo approved