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Thursday, 29. October 2026

Water quality at Playa de Castillo-Bajamar (San Juan) today

Data as of: 2026-10-29, 00:22

Officially measured

bathing permitted

Most recent sample: 21 September 2026

Our calculation

Some concern today

Reason: waste water discharge 201 metres away, not authorised, slight contamination possible. Please observe any signage on site.

* Calculated from rain, live data on ocean currents and the zone own sample series. Updated hourly.

Playa de Castillo-Bajamar is situated in San Cristóbal de La Laguna on Tenerife. The seabed consists of gravel and dark sand. At around 400 metres long and approximately 90 metres wide, it is about one and a half times as long as the average bathing area on Tenerife. The local council also reports that the beach has accessible facilities and a promenade.

Most recent official sample

E. coli9Limit 500
Intestinal enterococci9Limit 185
Official verdictbathing permitted (Zona Apta para el baño)
Annual classexcellent (EXCELENTE)

The most recent sample was taken on 21 September 2026. For conditions today it is only an indication. This zone is sampled about every 14 days, and by that rhythm the next sample is due on 5 October 2026.

Satellite image of Playa de Castillo-Bajamar (San Juan) in San Cristóbal de La Laguna, with the position of the nearest wastewater outfall 119 metres away.
Satellite image of Playa de Castillo-Bajamar (San Juan) in San Cristóbal de La Laguna, with the position of the nearest wastewater outfall 119 metres away. Map data: Esri, Maxar, Earthstar Geographics.

Water temperature at Playa de Castillo-Bajamar (San Juan), Tenerife

The current water temperature at Playa de Castillo-Bajamar (San Juan) in San Cristóbal de La Laguna, Tenerife, is 24 degrees Celsius.

Conditions today

Rain over the past 48 hours0.0 millimetres
Current0.4 km/h
Wave height2.08 metres

Waste water discharges nearby

Waste water discharges nearbyDistanceOfficial verdictTreatmentCondition of the pipe
Saneamiento Piscinas de Bajamar119 Meternot authorisedno datano data
Aliviadero emergencia EBAR Bajamar201 Meternot authorisedscreening onlyno data
Piscinas públicas de Bajamar231 Meternot authorisedno datagood
Emisario Submarino de Emergencia EBAR Bajamar770 Meterauthorisedscreening onlypoor
Club Náutico de Bajamar - Piscina Climatizada837 Meterpendingno datagood
Club Náutico de Bajamar - Piscina Noreste867 Meterpendingno datagood
Club Náutico de Bajamar - EBAR Norte911 Meternot authorisedno datagood
Club Náutico de Bajamar - Piscina Norte920 Meterpendingno datagood

History

37 samples since 22 May 2023, none of them with a ban or warning.

This page exists because a waste water outlet discharges into the sea 119 metres away. The measurement series for this zone has been unremarkable so far.

Official bathing water profile (PDF)

The map needs JavaScript. All readings are in the tables on this page as well.

Beaches nearby

For the nearest zones it is noted where the same discharge lies nearby and where the register already holds a bathing ban. Whether a discharge reaches a stretch of coast depends on current and rainfall:

All bathing zones on Tenerife To the map of all Canary Islands

This page does not replace official bathing water monitoring or a warning issued by the municipality. The estimated part is our own calculation, not a measurement.

Sources: Gobierno de Canarias (Dirección General de Salud Pública; Censo de vertidos desde tierra al mar), Ministerio de Sanidad (NÁYADE), European Environment Agency (UWWTD), Ministerio para la Transición Ecológica, Open-Meteo.