Last updated: June 2, 2025
Understanding the UV Index in Chur, Switzerland is essential for protecting your skin from harmful ultraviolet rays. As a region with a dry, alpine climate, Chur experiences significant UV exposure, especially during peak hours when the index can reach 10—the maximum level of risk for sunburn. By staying informed about UV levels, you can take proactive measures to safeguard your skin health and enjoy the beautiful Swiss outdoors without worry. Remember, even on seemingly mild days, UV radiation can pose serious risks—so don't forget to check the UV index before heading out!
The UV Index today showcases a dynamic progression throughout the morning and afternoon. Starting off at a mild value of 1 at 7:00 AM, it gradually increases to 2 by 8:00 AM. By 9:00 AM, it ramps up to 4, paving the way for a sunny peak at 12:00 PM, when it reaches its maximum of 10. This high level of UV radiation remains consistent until 2:00 PM. As the afternoon wanes, the index gently descends, dropping to 9 at 3:00 PM, then further to 7 at 4:00 PM, and down to a gentler 3 by 6:00 PM. Finally, as daylight dims, the UV Index falls to 1 at 7:00 PM, concluding a day of varied sun exposure. Be sure to take precautions during the peak hours to protect your skin!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | 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 |
| Chur | 2 | 4 | 7 | 8 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |