The visit of Pope Leo XIV to the Canary Islands on 11 and 12 June will coincide with a period of increased vigilance over ultraviolet radiation, with several parts of the Archipelago facing very high risk levels. Health authorities are urging residents, visitors and those attending public events to take extra precautions, especially during long periods outdoors.
The Directorate-General for Public Health has reminded the public that protective measures must be reinforced whenever the health risk linked to solar radiation reaches very high or extreme levels. This warning is particularly relevant ahead of the Pope’s visit, when large numbers of people are expected to gather in open-air spaces in Gran Canaria and Tenerife.
The authorities stress that sun exposure can become a health risk not only at beaches or swimming pools, but also during city walks, queues, outdoor religious ceremonies, public gatherings and long journeys. With major events planned during the papal visit, people attending are advised to prepare in advance and protect themselves throughout the day.
Very high UV risk in several areas of Tenerife
Tenerife is one of the islands causing the greatest concern. The ultraviolet radiation map shows several areas marked in red, indicating a very high level of risk.
The affected municipalities include Garachico, San Juan de la Rambla, Los Realejos, La Orotava, Puerto de la Cruz, Santa Úrsula, La Victoria de Acentejo, El Sauzal, Tacoronte, Tegueste, Santa Cruz de Tenerife, Candelaria, Arafo, Güímar, Fasnia and Arico.
These areas may experience solar radiation levels that require reinforced protection, especially during the central hours of the day, when UV exposure is usually strongest.
The warning is particularly important for people who may spend several hours outdoors waiting for events, moving between venues or attending religious gatherings linked to the visit of Pope Leo XIV.
Recommendations for protection against ultraviolet radiation
Public Health has issued a series of recommendations to reduce the risks associated with UV exposure. The main advice is to use SPF 50 sunscreen every day, especially during the middle of the day and whenever prolonged outdoor exposure is expected.
Authorities also recommend wearing a cap or wide-brimmed hat, approved sunglasses, and light clothing that covers the skin. Seeking shade whenever possible is also strongly advised, particularly for children, elderly people and those with sensitive skin or existing health conditions.
These measures are especially important during large outdoor gatherings, where people may remain in the same place for long periods and may not always have easy access to shade or shelter.
Five levels of UV risk
The Plan of Preventive Measures against Ultraviolet Radiation establishes five levels of health risk: low, moderate, high, very high and extreme.
Each level comes with specific recommendations depending on the potential impact of sun exposure on health. When the risk reaches very high or extreme levels, the need for sun protection becomes more urgent, and avoiding unnecessary exposure during peak radiation hours is strongly recommended.
The current warning means that people attending events linked to the Pope’s visit should not underestimate the effects of the sun, even if temperatures do not feel extreme.
Health effects of UV radiation
Ultraviolet radiation can have several acute effects on health. These include sunburn, DNA damage, phototoxic and photoallergic reactions, and immunosuppression.
Health authorities warn that immunosuppression caused by UV exposure can be considered a risk factor for cancer. It may also contribute to the reactivation of certain viruses, such as cold sores.
For this reason, the public is reminded that sun protection should be treated as a basic health measure, not only as a precaution for beach days. Any prolonged exposure outdoors can carry risks, particularly during the central hours of the day and in areas with very high UV levels.
Precautions during the Pope’s visit
The visit of Pope Leo XIV is expected to bring large crowds to open-air spaces in both Gran Canaria and Tenerife. Many people may spend long periods standing, walking or waiting outdoors, which increases the importance of adequate protection from the sun.
Those attending events are advised to apply sunscreen before leaving home and reapply it when necessary. They should also bring water, wear protective clothing, use sunglasses and hats, and try to remain in shaded areas whenever possible.
The warning from Public Health is therefore not only a general weather-related notice, but a practical reminder for anyone planning to take part in the public events scheduled during the Pope’s historic visit to the Canary Islands.
Overall, the combination of very high UV radiation levels, large gatherings and extended outdoor exposure makes prevention essential. Authorities are urging the public to act responsibly and protect themselves throughout the day.
