Canary Islands Health Service Issues Extreme UV Radiation Warning

The Canary Islands Health Service has issued a warning about the high levels of ultraviolet (UV) radiation across the archipelago. With most islands currently at "very high" or "extreme" risk, health officials are urging residents and visitors to make sun protection a daily habit, regardless of the weather or temperature.

The alert highlights specific areas of extreme risk, including parts of El Hierro and La Palma, as well as southern and mid-altitude regions of Tenerife. Much of La Gomera and Gran Canaria are also under an extreme alert, while Fuerteventura faces a "very high" risk across most of the island.

Medical experts warn that sun damage is cumulative. Prolonged exposure without protection can lead to serious skin conditions, including melanoma and other forms of skin cancer. UV radiation also poses a significant threat to eye health, increasing the risk of cataracts and conjunctivitis, making the use of certified sunglasses essential.

To stay safe, authorities recommend the following:

• Apply sunscreen with an SPF of 50 or higher every day.
• Wear protective clothing that covers your arms and legs.
• Wear a wide-brimmed hat.
• Seek shade during the brightest hours of the day.

Children require extra care, as their skin is particularly sensitive to sun damage, which can lead to long-term health issues.

It is a common mistake to believe that cloudy or breezy days are safe; UV rays still penetrate through clouds, and the breeze can mask the intensity of the sun. Because sun exposure can also weaken the immune system and trigger conditions like cold sores, officials stress that everyone—especially those working or spending time outdoors—must remain vigilant about sun safety throughout the year.