Beaches in Castelldefels: where to swim today?
1 beach in 1 municipality. 1 with a Blue Flag 2026-2027.
All beaches in Castelldefels
Bathing water: Out of season, latest analysis on 14/09/2026
Baixador beach is the southernmost stretch of Castelldefels beach, a long strip of fine sand about 18 km south of Barcelona, between the Llobregat delta and the Garraf massif.
Getting to know the sea in Castelldefels
- Wind
Winds here have names: tramontana (from the north), mestral (from the north-west), garbí (from the south-west) and levante (from the east).
Each beach page uses these names when they blow, and they count in the verdict like any other wind. Each name links to its definition.
- Tide
In the Mediterranean the tide varies by only a few centimetres, so we do not mark high or low tide.
- Bathing water
Out of season: 1
Latest analysis at each beach: 14/09/2026.
It is a periodic analysis, not today's water. The detail and the source are on each beach page.
Verdict for today only; each beach's page has the reasons and sources. It does not replace the instructions of the authorities at the beach.
Frequently asked questions
Which beaches in Castelldefels can I check today?
We cover 1 beach in Castelldefels, checked one by one: Playa del Baixador. Its page has today's verdict and the reasons.
How do I know if I can swim at beaches in Castelldefels today?
Each beach's page gives you today's verdict: we combine AEMET warnings, the latest water analysis from the Ministry of Health and the weather and sea forecast. A red warning is enough for us not to recommend a beach. At the beach, always follow the lifeguards' instructions.
Which beaches in Castelldefels have a Blue Flag?
Playa del Baixador: Blue Flag 2026-2027, according to ADEAC. It is a seasonal award and says nothing about how the beach is today.