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. coli | 9 | Limit 500 |
|---|---|---|
| Intestinal enterococci | 9 | Limit 185 |
| Official verdict | bathing permitted (Zona Apta para el baño) | |
| Annual class | excellent (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.

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 hours | 0.0 millimetres |
|---|---|
| Current | 0.4 km/h |
| Wave height | 2.08 metres |
Waste water discharges nearby
| Waste water discharges nearby | Distance | Official verdict | Treatment | Condition of the pipe |
|---|---|---|---|---|
| Saneamiento Piscinas de Bajamar | 119 Meter | not authorised | no data | no data |
| Aliviadero emergencia EBAR Bajamar | 201 Meter | not authorised | screening only | no data |
| Piscinas públicas de Bajamar | 231 Meter | not authorised | no data | good |
| Emisario Submarino de Emergencia EBAR Bajamar | 770 Meter | authorised | screening only | poor |
| Club Náutico de Bajamar - Piscina Climatizada | 837 Meter | pending | no data | good |
| Club Náutico de Bajamar - Piscina Noreste | 867 Meter | pending | no data | good |
| Club Náutico de Bajamar - EBAR Norte | 911 Meter | not authorised | no data | good |
| Club Náutico de Bajamar - Piscina Norte | 920 Meter | pending | no data | good |
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
All bathing zones on Tenerife To the map of all Canary Islands
Waste water news from the 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.