Last updated: June 2, 2025
In Gruenau im Almtal, Austria, awareness of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels is essential for preventing sunburn and reducing long-term skin damage, particularly during the warmest hours of the day when the index peaks at 9 from 12:00 PM to 2:00 PM. Nestled in a Cfb climate zone, Gruenau experiences moderate temperatures, but this region’s strong UV radiation can pose a risk even on cloudy days. Stay informed and take proactive measures to enjoy the stunning Alpine landscapes safely while keeping your skin's health a top priority.
As the sun rises, so does the UV Index, gradually climbing from 1 at 07:00 to a peak of 9 between 12:00 and 14:00. This highlights a risk level where protection is essential. From the 11:00 hour onward, the UV levels reach their maximum intensity, urging outdoor enthusiasts to take precautions. After 15:00, the index begins to decline, dropping back to 4 by 17:00, and then settles at 1 later in the evening as the sun sets. It's a reminder of the sun’s strength during midday, so make sure to stay sheltered or apply sunscreen if you plan to be outside 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 | 9 | 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 |
The UV Index exhibits significant seasonal variation, with the highest levels occurring between May and August, where values peak at 9 during June and July, indicating a very high exposure category. Visitors and residents should be especially cautious during these months, as the burn time drops to just 15 minutes. March through April also pose a risk with high UV levels of 6 and 7, respectively, while the index decreases in the winter months, reaching a low of 2 in January and December, where burn time extends to 45 minutes. To ensure safety from harmful UV radiation, it is advisable to wear protective clothing, utilize broad-spectrum sunscreen, and seek shade during high-risk months, particularly from May to August. As UV levels fluctuate throughout the year, remaining vigilant is essential for skin health.
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 |
| Gruenau im Almtal | 2 | 3 | 6 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Innsbruck UVI | 2 | 4 | 7 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |