Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Andermatt, Switzerland, where the pristine alpine environment can expose you to elevated UV levels. With the potential for rapid increases in UV radiation, especially during midday, it’s essential to stay informed about daily UV levels to prevent sunburn and promote skin health. Nestled in a Dfc climate zone, Andermatt experiences unique weather patterns that contribute to variable UV exposure risks, making awareness even more vital for ensuring your outdoor activities remain safe and enjoyable. Whether you’re skiing down the slopes or hiking through the scenic trails, staying mindful of the UV Index will help you protect your skin while soaking in the breathtaking views.
The UV Index today shows a dynamic rise and fall throughout the hours, peaking in the midday sun. Starting from a gentle 1 at 07:00, it gradually climbs to reach 8 by 12:00, just before the sun reaches its zenith. The intensity spikes to its highest point of 9 at 13:00, remaining high until 14:00, when it begins to taper off. By 15:00, it drops to 7, continuing its downward trend to 4 by 17:00, and then easing back to the safer 1 by 19:00. Remember to protect yourself during the peak hours, especially between 11:00 and 14:00, when the sun’s rays are strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index shows significant seasonal variations, indicating changes in the sun's intensity. January and December have the lowest UV levels (2), categorized as low exposure, allowing for longer burn times of up to 45 minutes. However, as we transition into February and March, the index rises to moderate (4) and high (6) categories, respectively, with reduced burn times of 30 and 25 minutes. The most critical months for sun exposure are from April to August, where the UV Index reaches its peak at 10 during June and July, classified as very high exposure with a rapid burn time of just 15 minutes. The UV levels then gradually decrease in September to high (7) and back to moderate levels in October and November. Visitors and residents are advised to take extra precautions during the high-risk months of April to August, by wearing protective clothing, applying sunscreen frequently, and minimizing sun exposure during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basel UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Bern UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 2 |
| Zurich UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Geneve UVI | 2 | 3 | 6 | 7 | 8 | 10 | 9 | 8 | 7 | 5 | 3 | 2 |
| Lausanne UVI | 2 | 4 | 6 | 7 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 2 |
| Andermatt | 2 | 4 | 6 | 8 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |