The Directorate General of Emergencies of the Canary Islands Government has declared a pre-alert for coastal phenomena affecting Tenerife and the western islands, and Gran Canaria from today, Tuesday (July 30th).
This situation will impact the eastern, southern, and western coastlines of Tenerife and the western islands, as well as the southern and western coasts of Gran Canaria. The Spanish Meteorological Agency (Aemet) has also issued a yellow alert for Tenerife.
Significant southern swell, with waves exceeding 1.5 metres, is expected. This will lead to changes in currents and potential hazards for swimmers and coastal infrastructure.
The most significant impact will coincide with tidal changes as follows:
Tuesday, July 30th:
- Tide coefficient: 51
- High tide: 10:25pm - 10:40pm
- Low tide: 4:15pm - 4:30pm
Wednesday, July 31st:
- Tide coefficients: 54 and 51
- High tide: 11:05am - 11:20am and 11:40pm - 11:55pm
- Low tide: 4:40am - 5:00am and 5:30pm - 5:45pm
Thursday, August 1st:
Tide coefficients: 61 and 65
High tide: 12:05pm - 12:20pm
Low tides: 5:45am - 6:00am and 6:15pm - 6:40pm
The pre-alert decision was based on forecasts from AEMET and other available sources, in accordance with the Canary Islands Emergency Plan for Adverse Meteorological Risks (Decree 18/2014, March 20).
Coastal Safety Recommendations:
Due to the worsening sea conditions, it is advisable to postpone nautical or sports activities and avoid swimming at isolated or unsupervised beaches.
If unusual waves are observed, do not stay close to the shore, even if the sea appears calm suddenly. It is crucial to avoid piers and breakwaters and not remain in areas where waves might hit or drag you into the sea.
Furthermore, swimming is prohibited at beaches displaying red flags, and it is important to follow the instructions of lifeguards.
In any emergency, it is vital to immediately alert emergency services by calling 112.
