Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Septfontaines, Luxembourg, as it serves as a vital indicator of harmful ultraviolet radiation levels that can impact your health. A clear comprehension of UV levels can significantly aid in sunburn prevention and promote skin health, safeguarding you and your loved ones from the harmful effects of excessive sun exposure. With its temperate Cfb climate, Septfontaines typically experiences varying UV levels, peaking in the early afternoon with an index that can reach as high as 9 on sunny days. Staying informed gives you the tools to enjoy the outdoors while protecting your skin from UV damage.
Radiating through the early hours, the UV Index begins with a gentle 1 at 07:00, gradually climbing to 2 by 08:00. As the sun ascends, so does the intensity, peaking at 9 by 13:00, indicating the day's highest UV exposure. A slight dip occurs as the clock ticks past the afternoon, with values decreasing to 6 at 16:00 and further to 4 by 17:00. As the day transitions to evening, the index falls back to 3 at 18:00 and concludes at a modest 1 by 19:00. This hourly progression highlights the importance of sun safety, particularly during the midday hours when protection is essential!
| 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 | 4 | moderate | 30 min |
| 11:00 | 6 | 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 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with high-risk months identified primarily from April to August, where the index peaks at an alarming 9 in June. During these months, the exposure category escalates to very high, resulting in a burn time of just 15 minutes for unprotected skin. In contrast, January, November, and December have low UV levels, making sun protection less critical, with burn times extending to 45 minutes. As such, it’s essential for both visitors and residents to stay vigilant during the peak months by applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade, especially between 10 AM and 4 PM, when UV rays are strongest.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Luxembourg UVI | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 7 | 6 | 4 | 2 | 1 |
| Septfontaines | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Bettembourg UVI | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Schifflange UVI | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Dudelange UVI | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Esch-sur-Alzette UVI | 2 | 3 | 4 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |