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Marbella — Biarritz
Water quality
Monitoring of the Ostreopsis micro-algae: samples, history and reports.
Concentration trends
Logarithmic scale. Zero values and "below detection threshold" values cannot be plotted on this scale (see the full table below). Dark red dots indicate a beach closure.
Approved testimonials
10- 🌊 Open-water swimming (Less than 30 min) on 15/08/2026 · symptoms on 16/08/2026🟢 Mild😷 Cough🤕 Headache
- 🌊 Open-water swimming (30 min to 1 h) on 16/08/2026 · symptoms on 16/08/2026🟢 Mild🫁 Breathing difficulty😷 Cough💪 Muscle aches
- 🌊 Open-water swimming (1 h to 3 h) on 16/08/2026 · no symptoms
- 🤿 Diving (30 min to 1 h) on 14/08/2026 · symptoms on 15/08/2026🔴 Severe👃 Throat / nose irritation
- 🌊 Open-water swimming (1 h to 3 h) on 10/08/2026 · symptoms on 11/08/2026🟠 Moderate👃 Throat / nose irritation🩹 Skin irritation
- 🏊 Swimming (More than 3 h) on 07/08/2026 · no symptoms
- 🌊 Open-water swimming (More than 3 h) on 02/08/2026 · symptoms on 04/08/2026🔴 Severe🩹 Skin irritation
- 🌊 Open-water swimming (More than 3 h) on 03/08/2026 · symptoms on 04/08/2026🟢 Mild🌡️ Fever / chills
- 🏊 Swimming (More than 3 h) on 31/07/2026 · no symptoms
- 🤿 Diving (1 h to 3 h) on 28/07/2026 · symptoms on 29/07/2026🟠 Moderate💫 Dizziness
Testimonials are anonymous and shown after moderation. Correlation does not imply causation.
Full sampling history
| Sample | Result | Cells/L | siamensis | ovata | Temp. | Status |
|---|
The beach
Tides, daylight and practical information — unrelated to water quality.
Practical information
Sand190 m of beach
Nearby
🅿️ Car park🚻 Toilets🚿 Showers🚰 Drinking water🍽️ Food and drink
View this beach on OpenStreetMap — General information © OpenStreetMap contributors (ODbL)
Data sources
- Official samples: Communauté d'Agglomération Pays Basque (CAPB) — the only ones used for status and closures.
- Tides: Open-Meteo forecasts (indicative).
- General beach information: OpenStreetMap contributors (ODbL) — may be incomplete or out of date.