Canary Islands Issue Health Alert as Extreme UV Levels Forecast

The Canary Islands government has issued a health alert as solar radiation levels are set to reach extreme levels across the archipelago over the coming days. According to the State Meteorological Agency (Aemet), the period from July 27 to July 31 will see ultraviolet (UV) exposure hit critical thresholds in many areas.

In Tenerife, the municipalities of Vilaflor de Chasna, Guía de Isora, and Santiago del Teide are at the highest risk, though the rest of the island remains under a "very high" alert. This pattern is reflected across the region: all municipalities in El Hierro are at maximum risk, while in Gran Canaria, fourteen locations—including Mogán, Artenara, Tejeda, and San Bartolomé de Tirajana—face extreme conditions. In La Gomera, Alajeró and Valle Gran Rey are the most critical areas, and in Fuerteventura, Betancuria is the only location reaching the extreme level. Lanzarote and La Graciosa remain under a very high-risk alert.

Health officials warn that excessive sun exposure can lead to immediate issues like sunburn, eye damage, and dehydration. More importantly, it is a major factor in long-term health risks, including skin cancer.

To stay safe, authorities advise residents and visitors to limit outdoor activity between 11:00 a.m. and 6:00 p.m., when the sun is at its strongest. If you must be outside, stay in the shade and wear protective clothing, such as wide-brimmed hats and sunglasses with certified UV filters. Experts also stress the importance of using SPF 50+ sunscreen, reapplying it every two hours or immediately after sweating or swimming. These precautions are especially vital for children, the elderly, and those who work outdoors.