Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Indre Arna, Norway, where the climate features mild summers and cool winters. As the UV levels can reach a peak of 6 during the sunny months, being aware of these fluctuations can significantly aid in sunburn prevention and promoting overall skin health. Protecting yourself from harmful UV rays is essential, particularly when the sun is at its highest intensity between 11:00 AM and 3:00 PM. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while safeguarding your skin against potential damage.
The UV Index for the day presents a clear progression of intensity as the hours unfold. Starting off at a manageable 1 at 07:00, the warmth of the sun gradually encourages an increase, reaching 2 by 08:00 and maintaining this level through 09:00. The sun then begins to assert its strength, peaking at 6 from 12:00 to 15:00, indicating a need for sun protection, especially during these midday hours. As the day winds down, the index recedes, dropping to 4 by 17:00 and eventually settling at 2 by 19:00. Be sure to enjoy the sunlight wisely and stay protected during those vibrant afternoon 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 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, seasonal UV changes significantly influence sun exposure risks. The high-risk months are notably June and July, where the UV Index reaches levels of 6 and 7, indicating a high exposure category and a burn time of just 25 minutes. As spring approaches, UV levels escalate, with March to May marked as moderate risk months (UV Index 3 to 5), requiring caution and protective measures in as little as 30 minutes of sun exposure. In contrast, the winter months (January, February, October, November, December) present lower UV levels (Index 1 or 2) with a 45-minute burn time, indicating a decreased risk. Visitors and residents are advised to stay vigilant during the high-risk months by wearing protective clothing, using sunscreen, and seeking shade during peak sun hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trondheim UVI | 1 | 1 | 2 | 4 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 |
| Bergen UVI | 1 | 1 | 3 | 4 | 5 | 7 | 6 | 5 | 4 | 2 | 1 | 1 |
| Indre Arna | 1 | 2 | 3 | 4 | 5 | 7 | 6 | 5 | 4 | 2 | 1 | 1 |
| Oslo UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Drammen UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Stavanger UVI | 1 | 1 | 3 | 4 | 6 | 7 | 6 | 5 | 4 | 2 | 1 | 1 |