Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Hirtshals, Denmark, where the interplay of coastal climate and varying sunlight can significantly impact skin health. Being aware of UV levels helps in preventing sunburn and reducing the risk of long-term damage associated with harmful radiation. With Hirtshals' temperate maritime climate (Cfb), UV exposure can peak during midday, showcasing values reaching 6 around noon. By staying informed about these fluctuations, you can protect yourself while enjoying the beautiful landscapes and coastal activities this charming town has to offer.
The UV Index throughout the day exhibits a clear pattern, peaking during the midday hours. Starting at 1 at 07:00, it gradually climbs to 2 by 08:00 and stays steady until 09:00. A significant rise occurs at 10:00, reaching 3, before hitting 5 at both 11:00 and 12:00. The highest intensity comes at 13:00 and 14:00, where the UV Index reaches a robust 6—indicating a need for sun protection during these hours. As the afternoon wears on, the index begins to taper off, dropping to 5 at 15:00, then 4 at 16:00, and further declining to 3 by 17:00. Finally, the evening brings a gentle decline, with the index falling to 2 at 18:00 and retreating to 1 by 19:00. Overall, it's essential to stay cautious around midday, when solar rays are at their strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences notable seasonal changes, peaking from late spring to summer. High-risk months for UV exposure are May through August, with the UV Index reaching as high as 7 during June and July, necessitating increased caution for both visitors and residents. In these months, the burn time decreases significantly to just 25 minutes, indicating the need for protective measures such as sunscreen and clothing. As the seasons transition into fall and winter, UV levels drop, with January, February, October, November, and December classified as low-risk months, allowing for longer exposure times of 45 minutes without significant risk. Overall, it is crucial for everyone to be aware of these fluctuations and to take appropriate precautions, particularly during the higher risk months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hirtshals | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 2 | 1 | 1 |
| Aalborg UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 2 | 1 | 1 |
| Arhus UVI | 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 |