What changes for visitors in southern Tenerife?
Aemet announced at 10:36 on 2 November that rain at warning level yellow would fall in the Canary Islands “the day after tomorrow”, reports Canarias7. That day is 4 November.
Canarias7 puts the yellow warning at five hours in its headline. The start and end times do not appear in the readable text, so they remain unconfirmed.
The report gives no separate forecast for the coastal resorts in the south. Aemet expects the heavy showers mainly in the interior of the mountainous islands, according to Canarias7, and the text does not list Tenerife individually.
Anyone driving into the mountains on 4 November should first check the Aemet map and any road closures. The authorities gave that advice in earlier pre-alert notices, for example about the approaches to Teide National Park.
In heavy rain, drive slowly and leave more distance. Nobody should drive or walk through flooded roads or barrancos (ravines).
What will the weather be like from Tuesday to Thursday?
Tuesday 3 November brings strong to very strong thunderstorm showers to the western islands overnight, according to Aemet. Very strong gusts and small hail are possible in places, and the rain lasts longest in the east of La Palma.
From midday, Aemet says new thunderstorm showers form in the interior of the mountainous islands. It does not rule out isolated thunderstorms on Lanzarote and Fuerteventura either.
On Wednesday 4 November, the unsettled weather gathers strength again, mainly from midday, says Aemet. It expects locally heavy showers in the interior of the mountainous islands, accompanied by thunderstorms.
The wind that day is light and variable from the east. It picks up on Lanzarote and Fuerteventura in the late afternoon.
Thursday 5 November calms down, according to Aemet. Weak to moderate rain still falls in the interior of the mountainous islands, mainly on the northern and eastern slopes, while the rest of the archipelago sees high cloud.
How serious is a yellow warning?
Yellow is the lowest of Aemet’s three colour levels, followed by orange and red. According to Diario de Avisos, it means a risk to normal activities, with moderate damage for vulnerable people and exposed areas.
The original Aemet documents were not available during research. The Canary Islands government runs a second scale alongside it.
Its emergencies directorate-general explains pre-alert, alert and maximum alert under the PEFMA emergency plan, which covers risks from adverse weather. Both can apply at once, writes Diario de Avisos: Aemet measures the weather event, the government assesses the civil-protection risk.
What happened in earlier rain warnings?
Lanzarote had a yellow warning from 15:00 on 9 October to 06:00 on 10 October, reports Diario de Avisos. Aemet expected up to 15 litres per square metre in one hour and isolated thunderstorms.
The cause then was a DANA, a cut-off upper-level low, in a trough between south-west Spain and the Canaries. The reports available name no trigger for 4 November.
April 2025 shows how wet the islands can get. According to Aemet data via RTVC, it was the third-wettest month in the Canaries since 1961, averaging 50.3 litres per square metre, or 329% of normal.
On Tenerife, the Ravelo station in El Sauzal recorded 187.9 litres per square metre in April. The Llano de los Loros station in La Laguna reached 186.6 litres.
From October to December 2025, more rain and snow fell than normal, according to Aemet. The wettest day was 14 December, with 150 litres per square metre.
What is still unclear?
Canarias7 names neither the islands under yellow warning nor the exact five-hour window in its readable text. The reports available also give no rainfall figures in litres per square metre for 4 November.
There is no statement from 112 Canarias, the regional emergency service, and no reports of closures or cancellations. It is not known whether the Canary Islands government will declare a pre-alert.
Aemet updates warnings continuously on aemet.es, as a note in the Aemet notice itself shows. For times and zones in Tenerife, only that page counts.
According to the authorities, the emergency number 112 is meant only for genuine emergencies. For information, call 012.