Last updated: July 2, 2025
Understanding the UV Index is essential for the residents of Gnesau, Austria, where outdoor activities thrive against the stunning backdrop of the Alps. As a region characterized by a Dfb climate, Gnesau experiences significant UV exposure, particularly during summer months when sunburn risk escalates. Being aware of UV levels not only helps in preventing sunburns but also plays a crucial role in maintaining long-term skin health. With peak UV Index values reaching 10 around midday, it’s vital for locals and visitors alike to stay informed and take necessary precautions under the sun’s rays.
As the sun rises, the UV Index begins to climb steadily, peaking at a remarkable 10 by 1 PM. Starting at a low of 1 at 7 AM, the index swiftly escalates through the morning: reaching 2 at 8 AM, then hitting 4 by 9 AM. By 11 AM, it escalates to a notable 8, and just an hour later, it soars to 9. Between 12 PM and 1 PM, the UV Index reaches its maximum, urging everyone to seek shade and wear protection. Following this peak, the index gradually declines—settling at 9 at 2 PM, before dropping to 7 by 3 PM. As the afternoon wanes, the UV levels taper off to 4 at 5 PM, and finally retreat back to 1 by 7 PM. Be sure 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 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 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 significant seasonal fluctuations, with the highest risks occurring during the late spring and summer months. From May to July, the UV Index peaks at 8 to 10, categorized as very high, which corresponds to a burn time of only 15 minutes. April and August also present high exposure levels, with indices of 7 and 8 respectively. In contrast, the winter months of January and December have low UV exposure (Index 2) with much longer burn times of 45 minutes. For visitors and residents, it is crucial to remain vigilant during March through August, applying sunscreen, wearing protective clothing, and seeking shade to mitigate the risks of UV exposure during these high-risk months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vienna UVI | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Linz UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Graz UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 1 |
| Salzburg UVI | 2 | 3 | 6 | 7 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 2 |
| Gnesau | 2 | 4 | 6 | 7 | 8 | 10 | 10 | 8 | 7 | 5 | 3 | 2 |
| Innsbruck UVI | 2 | 4 | 7 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |