Last updated: July 2, 2025
Understanding the UV Index in Gravesano, Switzerland, is crucial for safeguarding your skin and overall health. With the region's Dfc climate, residents and visitors alike experience significant UV exposure, particularly during peak hours from 11:00 AM to 3:00 PM, when the index can soar to a high of 9. Being aware of UV levels helps prevent sunburn and lowers the risk of long-term skin damage, ensuring you can enjoy the beautiful Swiss sunshine while staying protected. Whether you’re trekking through picturesque landscapes or simply relaxing outdoors, knowing the UV Index can make all the difference in your sun safety routine.
As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it climbs to a 2, indicating a low risk of harm from unprotected sun exposure. However, from 09:00 onwards, the intensity builds, peaking at 9 between 13:00 and 14:00—a time when precautions are essential to protect skin from damage. The afternoon hours see a slight decrease, dropping to 8 at 15:00 and further declining to 4 by 17:00. As the sun sets, the UV Index falls back down to 1 by 19:00, marking a return to safer levels. Stay vigilant during those midday hours to enjoy the sunshine while keeping your skin healthy!
| 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 | 8 | very high | 15 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 exhibits notable fluctuations, indicating varying levels of sun exposure risk. The winter months of January and December see low UV levels (Index 2), allowing for a burn time of up to 45 minutes. As spring approaches, February rises to a moderate level (Index 3), with a reduced burn time of 30 minutes. The high-risk months commence in March and continue through August, peaking at 9 in June and July; during this period, exposure is categorized as very high and burn times drop to just 15 minutes. Following the mid-summer, September marks a decrease to a high category (Index 7), while October and November revert to moderate levels. As you plan outdoor activities, it is crucial to remain vigilant during the high-risk months (March to August); practice sun safety by seeking shade, wearing protective clothing, and applying sunscreen frequently to minimize UV exposure.
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 |
| Gravesano | 2 | 3 | 6 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Lausanne UVI | 2 | 4 | 6 | 7 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 2 |