Last updated: May 3, 2025
In Sira, Norway, understanding the UV Index is essential for safeguarding your skin health and preventing sunburn. With the midday UV levels reaching up to 6—especially during the warmer months—being aware of UV exposure can make a significant difference in your outdoor experiences. Sira's Cfb climate often comes with bright, sunny days, creating conditions that can lead to unexpected UV risks even when temperatures are mild. By regularly checking the UV Index, you empower yourself to enjoy the beauty of Sira while keeping your skin safe from harmful rays.
The UV Index peaks impressively as the day unfolds, starting with a gentle reading of 1 at 07:00 and steadily rising to reach 6 between 13:00 and 14:00. This marks the sun's highest intensity, urging sun-seekers to take precautions. As the afternoon wanes, the index begins its descent, dropping to 5 at 15:00 and then gently tapering off to 2 by 18:00. As evening approaches, the UV levels settle back to a comfortable 1 by 19:00. For anyone planning outdoor activities, midday offers the strongest sun exposure, making sunscreen and shade essential companions during the peak hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | 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, 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 |
| Sira | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |