Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Århus, Denmark, where the climate fosters bright summer days that can conceal hidden dangers. With UV levels peaking at a moderate 7 in the afternoon, awareness of these readings is vital for sunburn prevention and maintaining skin health. Regularly checking the UV Index helps you take the necessary precautions, especially during the warmer months when exposure risks increase. In Århus' temperate maritime climate, the sun's intensity can vary, making it essential to stay informed and protect your skin while enjoying the outdoors.
As the sun rises, the UV Index takes its first steps, starting at a gentle 1 at 07:00. By 08:00, it climbs to 2, and by mid-morning, it reaches a moderate 3. The intensity peaks at 12:00 with a significant 6, signaling that midday sun is at its strongest. As the clock ticks past 13:00, the UV Index hits its maximum at 7, urging outdoor enthusiasts to take precautions. Gradually, it begins to wane, dropping to 6 by 14:00, then easing further to 5 by 16:00. As evening approaches, the index falls to 3 at 17:00 and concludes the day gently at 1 by 19:00, allowing a breath of relief as the sun sets.
| 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 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 6 | 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 exposure fluctuates, with high-risk months occurring from May to August, when the UV Index reaches 6 or 7, indicating heightened risk for skin damage. In these months, burn time for unprotected skin reduces to just 25 minutes. Moderate levels in March, April, September, and October suggest a more cautious approach is still warranted, allowing for 30 minutes of exposure before risking a burn. Conversely, the winter months of January, February, November, and December feature a low UV Index of 1 or 2, with burn times of 45 minutes, making them safer for prolonged outdoor activities. It’s essential for visitors and residents alike to scale their sun exposure accordingly, ensuring proper skin protection during the high-risk months and enjoying the lower risks opportunistically in the winter.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aalborg UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 2 | 1 | 1 |
| Arhus | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
| Frederiksberg UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
| Copenhagen UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
| Odense UVI | 1 | 2 | 3 | 5 | 6 | 8 | 7 | 6 | 5 | 3 | 2 | 1 |