Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Karasjohka, Norway, where the climate can pose unique sun exposure risks. With a typical maximum UV Index reaching 5 during midday hours, awareness of UV levels is essential for preventing sunburn and promoting overall skin health. As Karasjohka experiences the Dfc climate zone, characterized by cold summers and long winter months, even mild UV exposure can lead to skin damage if proper precautions aren’t taken. Stay informed and protect yourself from the sun’s harmful effects!
The UV Index throughout the day presents a fascinating journey of sun exposure. Starting gently at 2 by 7:00 AM, the index climbs steadily, reaching its peak at 5 between 11:00 AM and 1:00 PM, indicating significant solar intensity during these hours. As the sun begins to descend, the intensity gradually tapers off, dropping back down to 2 by 6:00 PM and then to a mere 1 at 7:00 PM. For those planning outdoor activities, midday offers the highest UV levels, while early morning and late evening provide a more comfortable, low-risk exposure to sunshine.
| 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 | 3 | moderate | 30 min |
| 12:00 | 4 | moderate | 30 min |
| 13:00 | 4 | moderate | 30 min |
| 14:00 | 3 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels demonstrate significant seasonal variation, with the highest risk months being April through August. During this period, the UV Index rises from a moderate level of 3 in April to a peak of 5 in June and July, where the recommended burn time decreases to just 30 minutes. In contrast, the winter months—January, February, and December—feature a low UV Index, where exposure is less critical with a burn time of 45 minutes. Visitors and residents are advised to take precautions during the high-risk months: apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sun hours to reduce the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Karasjohka | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 2 | 1 | 1 | 0 |
| 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 |
| 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 |