Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Ranum, Denmark, where outdoor activities and vivid summer days beckon. The UV Index measures the strength of ultraviolet (UV) radiation from the sun, which can significantly impact skin health and sunburn risk. With typical UV levels soaring to 6 around midday, being aware of these fluctuations helps you take protective measures during peak times. Nestled in a Cfb climate zone, Ranum experiences a temperate maritime climate, making awareness of UV exposure even more essential for maintaining skin health and enjoying safe outdoor time throughout the year.
The UV Index begins its ascent at 7:00 AM, starting at a mild level of 1, welcoming the day with moderate sun exposure. By 10:00 AM, it climbs to a comfortable 3, making it a good time for outdoor activities. The sun reaches its peak intensity between 12:00 PM and 2:00 PM, where the index hits 5 and 6—perfect moments to seek shade or wear sunscreen. As the afternoon progresses, the intensity gradually diminishes, dipping back to 4 by 3:00 PM and further down to 1 by 7:00 PM. Overall, this data reveals a typical sunny day, with a clear warning for sun safety during the peak hours!
| 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 | 4 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ranum | 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 |