Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Granvin, Norway, where the unique Dfc climate can lead to fluctuating sun exposure. As UV levels can peak during midday hours, staying informed about these fluctuations helps prevent sunburn and promotes overall skin health. With UV Index values reaching as high as 7 in the early afternoon, it's important to take precautions, especially during the summer months when the sun's rays are most intense. By being mindful of UV exposure, you can enjoy the beautiful landscapes of Granvin while protecting your skin from potential harm.
The UV Index for the day presents a clear pattern of increasing intensity, peaking at 1 PM with a significant value of 7, signaling a time for caution if you're outdoors. As the day progresses, the index climbs steadily from 1 at 7 AM to reach 6 by noon. After the afternoon high, the levels gradually decrease, settling back to 3 by 6 PM. For your safety, it’s best to stay protected with sunscreen and protective clothing during the hours of 11 AM to 3 PM, when the UV exposure is at its highest. As the sun dips lower, the risk decreases, making later hours more comfortable for outdoor activities. Enjoy the sunshine wisely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | 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, UV exposure varies significantly, with the highest risk months occurring from May to July, when the UV Index reaches a peak of 7. During these months, categorized as high exposure, the recommended burn time is only 25 minutes, necessitating protective measures such as sunscreen and clothing. As spring transitions into summer, the UV Index climbs from moderate (3-5) in March and April to high, before tapering back to moderate levels in August and September. By October through December, the UV Index drops to low (1-2), allowing for more extended periods outdoors without immediate sun protection. Visitors and residents should remain vigilant during the peak months and take appropriate precautions to safeguard against harmful UV exposure.
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 |
| Granvin | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |