High UV Levels in the Canary Islands: What Expats and Visitors Need to Know
- Official sources checked
- Written by Sue Berry
- Practical guidance
Published 16 August 2026
The Canary Islands can have very high ultraviolet levels even when the air feels comfortable or cloud covers part of the sky. Understanding why helps residents and visitors make sun protection a normal daily habit rather than something reserved for the hottest days.
Listen to this Secret
Hear “High UV Levels in the Canary Islands: What Expats and Visitors Need to Know”
Choose a natural-sounding English voice and a comfortable reading speed from those available on your phone, tablet or computer.
Ready to listen.
Nothing plays automatically. Screen-reader users can continue to use their usual reading controls.
The Quick Answer
UV is often high in the Canary Islands because of their southerly latitude and strong sun angle. Altitude can increase exposure, and light cloud does not reliably block ultraviolet radiation. AEMET notes that UV Index values above 9 to 11 occur in Spain and can be even higher in the Canary Islands. Check the official forecast rather than judging risk by temperature.
Why the UV can be unusually strong
The islands lie much farther south than the United Kingdom and most of mainland Europe. For much of the year the sun sits higher in the sky, so ultraviolet radiation travels through less atmosphere before reaching the ground.
Altitude also matters. Mountain areas and high viewpoints can receive more UV than nearby sea-level locations. Cooler air at height can hide how quickly unprotected skin is being exposed.
Cloud and wind can be misleading
Cloud may reduce direct sunshine without removing UV risk. AEMET warns that high instantaneous UV values can still occur in cloudy conditions. Bright broken cloud can also scatter radiation. Wind and lower air temperatures may make the day feel mild while the UV Index remains high.
Use the UV Index, not the temperature
The UV Index describes the level of ultraviolet radiation expected at the ground. The World Health Organization recommends sun protection when the UV Index is 3 or above. AEMET publishes a Canary Islands forecast and explains what the index means.
Check the forecast for the island and day, then plan around the highest-risk hours. Shade, clothing, a broad-brimmed hat, UV-protective sunglasses and suitable broad-spectrum sunscreen work best together. Reapply sunscreen according to its instructions, especially after swimming, sweating or towelling.
Extra care for vulnerable people
Babies and young children need particular protection. People with fair skin, a history of skin cancer, photosensitive conditions or medicines that increase sun sensitivity should ask a healthcare professional for individual advice. Eye protection matters too: choose sunglasses that provide proper UV protection rather than judging them by how dark the lenses look.
When to seek medical help
Move out of the sun if skin becomes hot, painful or blistered. Seek medical advice for severe sunburn, blistering over a large area, signs of dehydration, confusion, fainting or illness in a baby or vulnerable adult. In an emergency in Spain, call 112.
Important — Read Before You Act
This page is general sun-safety information and does not replace advice from a doctor, pharmacist or dermatologist. UV varies by place, time, altitude, cloud and season. Check AEMET's current forecast on the day and follow the instructions supplied with sunscreen and prescribed medicines.
What To Do — Step by Step
Check AEMET's Canary Islands UV forecast before spending extended time outside.
Plan shade or indoor time around the strongest part of the day.
Wear covering clothing, a broad-brimmed hat and properly UV-protective sunglasses.
Apply broad-spectrum sunscreen generously and reapply as directed, including after swimming or towelling.
Give babies, children and vulnerable adults extra protection and regular drinks.
Ask a pharmacist or doctor whether any medicine or condition increases sun sensitivity.
Common Mistakes to Avoid
- Using air temperature as a measure of UV risk.
- Assuming cloud, wind or a sea breeze prevents sunburn.
- Relying on sunscreen alone instead of combining shade, clothing and timing.
- Missing commonly exposed areas such as ears, scalp, lips, neck and feet.
- Wearing dark fashion sunglasses without confirmed UV protection.
Your Action Checklist
- Official UV forecast checked
- Shade plan made
- Covering clothing packed
- Broad-brimmed hat ready
- UV-protective sunglasses ready
- Broad-spectrum sunscreen applied
- Water available
- Medicine sensitivity checked if relevant
- Emergency number 112 saved
Frequently asked questions
Why is the UV so high in the Canary Islands?
The islands' southerly latitude gives a stronger sun angle for much of the year. Altitude can add to exposure, while temperature and light cloud do not reliably show how much UV is reaching the ground.
Can I burn on a cloudy day in Tenerife or Gran Canaria?
Yes. Cloud can reduce visible sunshine without removing UV risk, and broken cloud can still allow high exposure. Check AEMET's UV forecast even when the sky is not clear.
Is UV only a summer problem in the Canary Islands?
No. UV varies through the year but can remain high outside the main summer season. Use the daily forecast rather than relying on the month.
What UV Index needs sun protection?
The World Health Organization recommends sun protection when the UV Index is 3 or above.
What is the emergency number in the Canary Islands?
Call 112 for an emergency in the Canary Islands and the rest of Spain.
Further Reading
In Summary
Strong UV in the Canary Islands is driven mainly by southerly latitude and can be increased by altitude. Cloud, wind and cool air are unreliable guides. Check AEMET's UV Index and combine shade, clothing, sunglasses and sunscreen.
Sue’s final thoughts & experiences
A personal note from Sue Berry
One of the lovely things about living in the Canary Islands is being able to enjoy the outdoors for so much of the year.
But because the breeze can make the day feel cooler, it is easy to forget how strong the sun really is.
Sun protection does not have to feel complicated. A hat by the door, sunscreen in your bag and checking the UV Index before heading out can become simple parts of everyday life.
A little preparation helps us enjoy the sunshine more safely—and gives visiting family the information they need to do the same.
Checked sources and useful services
Sources for this Secret
Relevant official starting points
Official information related to this Secret
Only countries and areas with guidance relevant to this subject are shown. Always check the latest information with the authority responsible for your circumstances.