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Cenitz — Guéthary

Latest result (29/09/2026): 440 cells/L — Low

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
  • 🏊 Swimming (Less than 30 min) on 16/08/2026 · symptoms on 16/08/2026🔴 Severe
    👁️ Irritated eyes
  • 🏊 Swimming (30 min to 1 h) on 16/08/2026 · symptoms on 16/08/2026🟠 Moderate
    😷 Cough
  • 🚶 Walk along the seashore (Less than 30 min) on 14/08/2026 · symptoms on 15/08/2026🟠 Moderate
    💪 Muscle aches🌡️ Fever / chills😷 Cough
  • 🚶 Walk along the seashore (More than 3 h) on 08/08/2026 · symptoms on 09/08/2026🟢 Mild
    🌡️ Fever / chills💪 Muscle aches💫 Dizziness
  • 🏊 Swimming (1 h to 3 h) on 04/08/2026 · no symptoms
  • 🏊 Swimming (1 h to 3 h) on 02/08/2026 · symptoms on 03/08/2026🟢 Mild
    🩹 Skin irritation😷 Cough🫁 Breathing difficulty
  • 🌊 Open-water swimming (More than 3 h) on 02/08/2026 · no symptoms
  • 🏊 Swimming (More than 3 h) on 28/07/2026 · symptoms on 30/07/2026🟢 Mild
    🩹 Skin irritation
  • 🌊 Open-water swimming (1 h to 3 h) on 28/07/2026 · symptoms on 29/07/2026🔴 Severe
    🩹 Skin irritation🌡️ Fever / chills
  • 🏊 Swimming (1 h to 3 h) on 28/07/2026 · no symptoms

Testimonials are anonymous and shown after moderation. Correlation does not imply causation.

Full sampling history

SampleResultCells/LsiamensisovataTemp.Status
28/09/202629/09/20264400%100%21.6°CLow
21/09/202622/09/20262400%100%21.4°CLow
14/09/202615/09/2026360—100%22°CLow
09/09/202610/09/20262 7605%95%22.5°CLow
07/09/202608/09/20263609%91%23.6°CLow
02/09/202603/09/20261 0801%99%23.3°CLow
31/08/202601/09/20261 640—100%23.4°CLow
26/08/202627/08/20265 3601%99%23.1°CLow
25/08/202626/08/20265 3601%99%23.1°CLow
24/08/202625/08/202647 8401%99%24.5°CModerate
19/08/202620/08/20263601%100%25.2°CLow
17/08/202618/08/20261 4001%100%25.5°CLow
15/08/202616/08/20262 9201%100%25.4°CLow
14/08/202615/08/20263 6401%100%25.3°CLow
12/08/202613/08/20265 7601%99%24.3°CLow
10/08/202611/08/20266400%100%—Low
05/08/202606/08/20264000%100%24.6°CLow
03/08/202604/08/20262000%100%24.7°CLow
29/07/202630/07/20262 6400%100%24.7°CLow
27/07/202628/07/20268002%98%24.2°CLow
22/07/202623/07/2026< 400%100%24.8°CUndetectable
20/07/202621/07/20266400%100%25.8°CLow
17/07/202618/07/20264 480——24.8°CLow
15/07/202616/07/202621 3600%100%26.3°CModerate
14/07/202615/07/20265 1201%99%25.2°CLow
13/07/202614/07/202611 8002%98%25.3°CModerate
09/07/202610/07/202611 840———Moderate
08/07/202609/07/20263 0804%96%25.4°CLow
06/07/202607/07/20269204%96%24.6°CLow
02/07/202603/07/202615 9602%98%23.9°CModerate
01/07/202602/07/2026134 5001%99%24.1°CClosure
29/06/202630/06/20263 8402%98%24.4°CLow
26/06/202627/06/20269207%93%24.8°CLow
24/06/202625/06/2026120—100%26°CLow
22/06/202623/06/20260——24.8°CUndetectable
17/06/202618/06/202640——22.5°CLow
15/06/202616/06/202640——22.4°CLow
08/06/202609/06/20260——19.3°CUndetectable
01/06/202602/06/20260——20.6°CUndetectable

The beach

Tides, daylight and practical information — unrelated to water quality.

Practical information

Plage de sable fin. Accessible depuis les campings du quartier d'Acotz. Baignade surveillée juillet et août.(Description available in French only.)

🛟 Lifeguarded swimming· 11:00–19:00390 m of beach♿ Limited wheelchair access

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.