Last updated: June 2, 2025
In Grone, Switzerland, being aware of the UV Index is essential for safeguarding your skin health. Understanding UV levels helps you take proactive measures against sunburn and long-term skin damage, particularly during the sun's peak hours when the index can soar to 11 around midday. Grone's unique ET climate means that while you can enjoy the outdoors, you'll also need to remain vigilant about UV exposure risks. With UV intensity fluctuating throughout the day, from a mild 1 in the early morning to a striking 10 in the afternoon, knowing how to protect yourself is crucial for a safe and enjoyable experience in the sun.
The UV Index shows a dramatic rise as the morning unfolds, starting at a low of 1 at 07:00. By 08:00, it gently climbs to 2, and by 09:00, it reaches 3. The mid-morning reveals a surge, peaking at 5 by 10:00. As the sun reaches its zenith, the UVI soars to a staggering 10 at noon, with a climb to 11 at 13:00, marking the highest point of the day. Just after, it gradually dips, but remains considerable at 10 by 14:00 and 9 at 15:00. The afternoon sees a striking decrease to 7 at 16:00 and continues to fall, landing at 3 by 18:00, before tapering off to 1 by 19:00. It's a clear reminder to stay sun-safe during those peak 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 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with the high-risk months typically occurring from March to August. During this period, UV Index values peak, reaching 11 in June, categorized as extreme, with a burn time of only 10 minutes. The very high category, with indices of 8 to 10, persists from April through July, signaling a critical need for skin protection. Conversely, the lower risk months of November and December present a notable decline in UV exposure, dropping to an index of 3 and 2, respectively, where burn times increase to 30 and 45 minutes. Visitors and residents should be especially vigilant during the spring and summer months, employing sunscreen, protective clothing, and seeking shade during peak hours to shield themselves from harmful UV rays.
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 |
| Grone | 3 | 4 | 7 | 8 | 10 | 11 | 10 | 9 | 7 | 6 | 3 | 2 |