Last updated: May 3, 2025
Awareness of the UV Index is crucial for residents of Knarvik, Norway, especially as summertime brings increased sun exposure. Understanding UV levels is vital not only for preventing painful sunburns but also for maintaining overall skin health. With a Cfb climate that offers mild summers, Knarvik residents should be mindful of the rising UV Index, particularly during peak hours between 11:00 AM and 3:00 PM, when values can reach up to 5. By staying informed, you can enjoy the outdoors safely while protecting your skin from harmful effects.
The UV Index today showcases a gradual climb in intensity as the day unfolds, beginning at a gentle 1 at 07:00 and 08:00. By 09:00, it barely nudges to 2, but at 10:00 it ramps up to 3, signaling a noteworthy increase in sun exposure. This trend escalates through midday, peaking at 5 from 12:00 to 14:00, indicating a higher risk of harm from unprotected sun exposure. As the afternoon wanes, the index gradually descends, falling back to 4 by 16:00 and tapering to 3 at 17:00. In the early evening, it continues to decline, returning to a safer 2 by 18:00 and dropping to 1 after 19:00. Be mindful of the sun’s potent rays during 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 | 5 | moderate | 30 min |
| 14:00 | 5 | moderate | 30 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 in the region exhibits notable seasonal variations that impact sun exposure and skin safety. From January to February, the UV Index remains low (1), allowing for a longer burn time of 45 minutes. As spring arrives in March, the index rises to 3, indicating moderate exposure, with a reduced burn time of 30 minutes. This trend continues with a slight increase in April (UV 4) and May (UV 5). The summer months (June and July) see the highest risk, peaking in June with a high UV Index of 7, leading to a burn time of just 25 minutes—thus making June and July the high-risk months for UV exposure. August and September return to moderate levels but still require caution. As temperatures cool in October to December, the UV levels drop back down to low (1-2), allowing for longer burn times again at 45 minutes. Visitors and residents should prioritize sun protection—such as wearing sunscreen, protective clothing, and sunglasses—especially between March and September, with a heightened emphasis during the summer months when UV exposure is most intense.
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 |
| Knarvik | 1 | 1 | 3 | 4 | 5 | 7 | 6 | 5 | 4 | 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 |