Last updated: May 3, 2025
Understanding the UV Index is vital for residents and visitors in Dalen, Norway, where even the mildest of sunny days can pose risks to skin health. Monitoring UV levels is essential for sunburn prevention and long-term skin protection, especially in this ET climate characterized by cool temperatures and variable weather. During the sunniest hours, particularly between 11:00 AM and 3:00 PM, UV exposure can peak, reaching levels of up to 6—a significant reminder to take protective measures. By staying informed about the UV Index, you can enjoy the beautiful Norwegian landscapes safely while safeguarding your skin from potential harm.
The hourly UV Index data reveals an inviting but cautionary trend throughout the day. Starting at a modest 1 at 7:00 AM, the index gradually climbs, hitting 2 by 8:00 AM and 2 again at 9:00 AM. As the sun climbs higher, it reaches 4 at 10:00 AM and peaks at 6 between 1:00 PM and 2:00 PM, indicating a time when sun protection is essential. The afternoon sees a slight dip, with readings of 5 at 11:00 AM and 12:00 PM, before tapering off to 4 by 4:00 PM, and settling back down to 1 by 7:00 PM. This pattern highlights the importance of staying vigilant about UV exposure, especially during midday hours when the risk is greatest. Remember to apply sunscreen and seek shade during those peak times!
| 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 | 4 | 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, seasonal UV Index changes indicate varying levels of sun exposure risk. In the low-risk months of January, February, October, November, and December, the UV Index remains between 1 and 2, allowing for a safer burn time of 45 minutes. As spring approaches, March sees a moderate UV Index of 3, reducing safe exposure to 30 minutes. The high-risk months of May through August, with UV Index values between 6 and 7, demand more caution as burn times drop to 25 minutes. September transitions back to moderate levels, while the cycle returns to low risk by October. Visitors and residents are advised to monitor UV Index changes, especially during high-risk months, by applying sunscreen, wearing protective clothing, and seeking shade to minimize skin damage.
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 |
| 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 |
| Dalen | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |