Last updated: July 2, 2025
In Hilterfingen, Switzerland, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding the varying levels of UV exposure throughout the day helps residents and visitors alike take necessary precautions, especially when indices peak at 10 around midday. With its Cfb climate, characterized by mild summers and increased sun intensity, Hilterfingen poses unique UV exposure risks that make vigilance essential. By staying informed about UV levels, you can enjoy the outdoors while protecting your skin from harmful effects.
The UV Index throughout the day reveals a clear pattern of increasing intensity. Starting at a low of 1 at 7:00 AM, it steadily climbs, reaching 3 by 9:00 AM. By 11:00 AM, caution is advised as the index spikes to 7, peaking at a striking 10 at 1:00 PM, which signifies a very high risk of harm from unprotected sun exposure. The afternoon sees a gradual decline, with the index lowering to 8 at 3:00 PM and tapering off to 1 by 7:00 PM. Protecting your skin is essential during the midday hours, particularly from 12:00 to 2:00 PM, when the UV levels are at their most potent.
| 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 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | 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, seasonal changes in UV exposure highlight significant fluctuations in the UV Index. The months of May through August are particularly high-risk, with UV Index values reaching a peak of 10, indicating very high exposure and a burn time of only 15 minutes. Visitors and residents should remain vigilant during these months, employing protective measures such as sunscreen and clothing, especially between 10 AM and 4 PM when UV exposure is strongest. March and April also show increased risk with UV Index values of 6 and 7 respectively. Conversely, January and December present lower risk levels, with UV Index values of 2 indicating low exposure and longer potential burn times of 45 minutes. It is essential to monitor UV levels year-round and adjust sun protection strategies accordingly to ensure 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 |
| Hilterfingen | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |