Last updated: June 2, 2025
Understanding the UV Index in Ilanz, Switzerland is crucial for both residents and visitors alike, as it informs us of the sun's intensity and helps us take appropriate precautions against skin damage. With levels peaking at 10 during the midday hours, awareness of UV radiation becomes vital in preventing sunburn and maintaining long-term skin health. Nestled in a high-altitude climate zone (ET), Ilanz experiences significant UV exposure risks, particularly during the summer months when the sun's rays are at their strongest. Stay informed and protect yourself while enjoying the beautiful outdoors!
The UV Index throughout the day showcases a notable increase in intensity, peaking at 12:00 PM, where it reaches a striking 10—indicative of very high sun exposure risk. Beginning from a gentle 1 at 7:00 AM, the index gradually escalates, hitting 3 by 9:00 AM and rapidly climbing to 6 by mid-morning. The sun's strength becomes undeniably potent around 11:00 AM with an 8, before settling into its peak at 12:00 PM and maintaining that level until 2:00 PM. As the day progresses, the intensity begins to wane, dropping to a 7 by 4:00 PM and tapering off to 1 by 7:00 PM, suggesting that while the morning and early afternoon require caution when outdoors, the evening presents a more comfortable atmosphere. Be sure to protect your skin during those high index hours!
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so does the UV Index, reflecting fluctuations in UV radiation exposure throughout the year. The highest risk months generally occur from April to August, where the UV Index reaches peak levels of 8 to 10, indicating very high exposure and a burn time as short as 15 minutes. Visitors and residents are strongly advised to take protective measures during these months, such as wearing sunscreen, sunglasses, and protective clothing. In contrast, January and December are safer months with a low UV Index of 2, allowing for longer exposure times of 45 minutes. However, even during moderate months like February, October, and November, UV precautions remain important, as burn times drop to 30 minutes. Staying informed and protecting your skin year-round is essential for health and safety.
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 |
| Ilanz | 2 | 4 | 7 | 8 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |