Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Grafendorf bei Hartberg, Austria, where varying UV levels can significantly impact skin health. The region's temperate Cfb climate brings sunlight that can pose risks, particularly during peak hours, where the index soars to 9 around 1 PM. By staying informed about UV levels, you can effectively prevent sunburn and reduce long-term skin damage. Whether you're enjoying outdoor activities or simply relaxing in the sun, being aware of the UV Index helps you protect yourself and your loved ones from harmful ultraviolet radiation.
The UV Index throughout the day reaches its peak around 1 PM, soaring to a high of 9. Early morning hours see a gentle rise, starting at 1 by 7 AM and gradually increasing to 4 by 9 AM. As the sun climbs higher, the index ramps up significantly, hitting 8 at 12 PM and declining thereafter. From 1 PM onward, the intensity begins to wane, dropping to 7 at 3 PM, then settling to a comfortable 3 by 5 PM. By evening, the index gently tails off, marking 2 by 6 PM and back to a restful 1 by 7 PM. Stay protected during those peak hours to enjoy the sunshine safely!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels exhibit significant seasonal variability, impacting the risk of sunburn for visitors and residents. The high-risk months, characterized by a very high UV Index of 8 or 9, occur from May to August, with burn times as short as 15 minutes. In contrast, the UV Index drops to a low level of 1 in December, allowing up to 45 minutes of safe sun exposure. As the seasons transition, caution should be taken during the moderate months of February, March, October, and November, where burn times decrease to 30 minutes. To minimize sun damage, individuals are encouraged to seek shade, wear protective clothing, and apply sunscreen, especially during the peak summer months when UV exposure is at its highest.
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 |
| Grafendorf bei Hartberg | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 3 | 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 |
| Innsbruck UVI | 2 | 4 | 7 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |