Last updated: June 2, 2025
In Mjondalen, Norway, staying informed about the UV Index is crucial for maintaining healthy skin and preventing sunburns. Understanding the UV levels throughout the day helps residents and visitors take proactive steps to protect themselves from harmful ultraviolet radiation. With a climate that features chilly conditions typical of the Dfc zone, people may underestimate sun exposure risks even during summer months. During peak hours, especially between 11 AM and 2 PM, the UV Index can reach levels of 6 to 7, indicating a heightened risk of harm from unprotected sun exposure. Being aware of these levels can empower you to enjoy the outdoors safely, whether it’s engaging in winter sports or soaking up the sun on a warm day.
The UV Index begins gently at 1 by 7:00 AM, but as the morning progresses, it steadily climbs, reaching a moderate 3 by 9:00 AM. By 10:00 AM, it hits 4, signaling the start of stronger sun exposure. The day peaks at 7 around 1:00 PM and 2:00 PM, indicating a high risk for unprotected skin. As afternoon turns to evening, the UV levels gradually decline, dropping to 2 by 6:00 PM and maintaining that level until 7:00 PM. Be sure to protect yourself during those peak hours and enjoy the sun safely!
| 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 | 6 | high | 25 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 7 | 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 |
The UV Index experiences notable seasonal changes, peaking during the summer months. From January to February, UV levels remain low (Index 1-2), allowing for a safe burn time of 45 minutes. As spring approaches in March, the index rises to 3, indicating a moderate exposure risk with a reduced burn time of 30 minutes, which continues into April and May. By June and July, UV levels escalate to 7, categorized as high, and the burn time decreases to just 25 minutes, marking this as a high-risk period for sun exposure. The UV Index begins to decline in August (Index 5) and remains moderate until September (Index 4), before returning to low levels in October, November, and December (Index 1-2, with burn times of 45 minutes). Consequently, residents and visitors are advised to take extra precautions during the summer months, particularly from June to July, by seeking shade, wearing protective clothing, and applying sunscreen to prevent sunburn and 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 |
| Mjondalen | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |