Canarias Saludable has activated the warning for very high ultraviolet radiation levels in Tenerife from July 6 to 10. Twelve municipalities on the island are under scrutiny, particularly during the central hours of the day.
Ultraviolet radiation has become the focus this week in Tenerife. Canarias Saludable, in collaboration with the State Meteorological Agency, has issued a warning for very high UV radiation risk affecting twelve municipalities on the island from Monday, July 6, to Friday, July 10, 2026. The warning is not to be taken lightly: the radiation index will reach levels that can damage the skin in minutes if proper precautions are not taken.
The municipalities on alert: from La Laguna to Adeje
The list of municipalities at very high risk includes both areas of the metropolitan region and the southeast and southern slopes of Tenerife. Specifically, the following are under warning: La Victoria de Acentejo, El Sauzal, Tacoronte, La Laguna, Tegueste, Santa Cruz de Tenerife, Candelaria, Arafo, Güímar, Fasnia, Arico, and Adeje.
According to data provided by Canarias Saludable, these municipalities will register a UV index above 8, which is considered very high. In contrast, northern towns such as Buenavista del Norte, Los Silos, Garachico, Icod de los Vinos, La Guancha, San Juan de la Rambla, Los Realejos, La Orotava, Puerto de la Cruz, Santa Úrsula, and La Matanza de Acentejo are not at the highest level, although authorities remind that the risk does not completely disappear.
The warning does not only affect beaches. Ultraviolet radiation can be just as intense in the midlands, on trails, or even in urban areas if there is no shade. Therefore, residents of the highlighted municipalities must exercise extreme caution, especially between 11:00 AM and 4:00 PM, when the sun is highest.
What a very high UV index means and how to protect yourself
The ultraviolet index measures the intensity of solar radiation reaching the surface. When it reaches a very high level, unprotected skin can burn in less than 20 minutes. This is particularly serious for people with fair skin, children, the elderly, patients with skin diseases, or those who work outdoors.
Canarias Saludable emphasizes that sun damage is cumulative. Repeated burns increase the risk of skin cancer, cataracts, and premature aging. Therefore, protection should be a daily routine, not just when going to the beach.
The recommended measures are simple but effective: use broad-spectrum sunscreen with SPF 50 or higher, apply it 30 minutes before exposure, and reapply every two hours or after swimming or sweating. It is also crucial to wear a cap or hat, UV-filter sunglasses, and light clothing that covers the skin. Seeking shade during peak hours and avoiding tanning booths are other basic tips.
For those who engage in outdoor sports, such as runners or cyclists, the recommendation is to go out early in the morning or at sunset. And for those working in agriculture or construction, protection should be part of their daily gear.
The Canary context: a sun that does not forgive
The Canary Islands enjoy an enviable climate, but also experience more intense solar radiation than the mainland due to their latitude and thinner ozone layer. This means that the risk of exposure is high throughout the year, even on cloudy or windy days.
The State Meteorological Agency reminds that the UV index does not depend on temperature. A cool but clear day can have very high radiation, and thin clouds barely filter the rays. Therefore, this week's alert should not be taken lightly.
In the affected municipalities, health centres have already begun distributing informational brochures and reminding chronic patients of the importance of photoprotection. Families with young children are also advised to take extra precautions in parks and outdoor play areas.
For tourists visiting the island during these days, the warning is clear: do not be complacent. The shade of an umbrella or a stroll through the historic centre can be just as dangerous if protection is not used. The sun in Tenerife does not understand holidays.
The warning from Canarias Saludable will remain active until Friday, July 10, although it may be extended if weather conditions require it. In the meantime, the recommendation is one: protect your skin, which is the only suit we cannot take off.
