Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Vennesla, Norway, where sun exposure varies throughout the day. Being aware of UV levels not only helps prevent painful sunburns but also plays a significant role in maintaining long-term skin health. With Vennesla's temperate Cfb climate, the UV Index can reach notable levels—topping at 6 during the midday hours—making it essential for locals to take precautions against potential skin damage. Stay informed and protect yourself as you enjoy the beautiful sunlit days in Vennesla!
As the sun rose at 07:00, the UV Index began its leisurely climb, starting at a gentle 1. By 08:00, it picked up pace, reaching 2, and continued to soar throughout the morning. At 09:00, the index hit 3, but it was between 10:00 and 12:00 that it truly peaked, reaching a notable 6. This level sustained itself through 13:00 to 15:00, offering a potent reminder of the sun's strength at midday. As the afternoon waned, the UV Index gracefully descended, dropping to 5 by 16:00 and further to 4 by 17:00. The evening brought relief, with readings of 2 at 18:00 and 19:00, marking the end of a vibrant day under the sun. Remember to stay protected when the UV Index is at its highest!
| 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 | 6 | 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 | 2 | low | 45 min |
| 19:00 | 2 | low | 45 min |
Throughout the year, UV exposure varies significantly, with notable seasonal changes impacting both residents and visitors. From January to February, the UV Index remains low (1-2), allowing for a burn time of 45 minutes, making skin protection less critical. March and April see a moderate rise (UV Index 3-4) with a reduced burn time of 30 minutes, suggesting that some protective measures are advisable during outdoor activities. The risk peaks in the high-risk months of May through August, where the UV Index reaches between 6 and 7, and burn time drops to just 25 minutes—strongly advising the use of sunscreen, protective clothing, and hats. As the year transitions into September with a moderate UV Index (4), and then back to low levels from October to December (1-2), residents should be reminded that vigilance is key during these warmer months to avoid skin damage while enjoying the outdoors.
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 |
| Vennesla | 1 | 2 | 3 | 4 | 6 | 7 | 7 | 6 | 4 | 2 | 1 | 1 |