Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Undersaker, Sweden, where sun exposure can pose risks even in the northern climate. As a part of the Dfc climate zone, Undersaker experiences unique weather patterns that can influence UV levels throughout the year. Awareness of these levels is essential for preventing sunburn and protecting skin health, especially when peak UV intensity reaches a moderately high level of 5 during midday hours. By keeping an eye on the UV Index, you can enjoy the outdoors while safeguarding yourself against potential skin damage.
Experience the dynamic shifts in UV Index throughout the day, starting from a mild 1 at 07:00. As the sun rises higher, the intensity gradually increases, reaching a moderate 3 by 09:00 and peaking at a robust 5 between 12:00 and 14:00. The midday sun demands attention, with the UV Index at its maximum—perfect for sun safety precautions! As the day progresses, it tapers off, descending to 4 by 15:00, and returning to a gentle 1 by 19:00. Enjoy the outdoors, but don’t forget your sunscreen during those peak hours!
| 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 | 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 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Seasonal variations in UV Index indicate a notable increase from the low levels in January and February (UV Index 1) to more hazardous levels in June and July (UV Index 6), where the burn time decreases to just 25 minutes. The UV Index reaches moderate levels in March through May (UV Index 3-5) and dips back to low levels from October to December. The high-risk months for UV exposure are clearly June and July, when direct sunlight can cause skin damage within 25 minutes. Residents and visitors should take precautions during these months by wearing protective clothing, applying sunscreen, and limiting sun exposure during peak hours to reduce the risk of UV-related health issues.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Undersaker | 1 | 1 | 3 | 4 | 5 | 6 | 6 | 5 | 4 | 2 | 1 | 1 |
| Sollentuna UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Uppsala UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Stockholm UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Goeteborg UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 2 | 1 | 1 |
| Malmoe UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |