Last updated: June 2, 2025
Understanding the UV Index in Jonstorp, Sweden, is crucial for maintaining skin health and preventing sunburn. As the sun rises higher during the day, the UV levels can reach significant peaks, especially between 11:00 AM and 3:00 PM, where values can soar up to 7—indicating a high risk of harm from unprotected sun exposure. With Jonstorp's Cfb climate, characterized by temperate conditions, it's important to recognize that UV radiation can still pose substantial risks, even on cooler days. Stay informed and protect your skin to enjoy the beautiful Swedish outdoors all summer long!
As the day unfolds, the UV Index begins at a modest 1 at 7:00 AM, indicating low sun exposure. By 9:00 AM, it rises to a 3, signaling a gentle increase in UV rays. The sun reaches its peak intensity around noon, with the index hitting 7—a reminder to stay protected. From 12:00 PM to 2:00 PM, the index holds steady at this elevated level, ideal for sun safety measures. As the afternoon progresses, the UV Index gradually declines: 6 at 3:00 PM, then tapering to 2 by 6:00 PM, and finally back to 1 by 7:00 PM. It’s a clear reminder that while the sun’s power peaks early in the day, it’s essential to stay aware of UV exposure throughout.
| 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 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | 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 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure fluctuates, with high-risk months occurring from May to August, when the UV Index reaches 6 or 7, indicating heightened risk for skin damage. In these months, burn time for unprotected skin reduces to just 25 minutes. Moderate levels in March, April, September, and October suggest a more cautious approach is still warranted, allowing for 30 minutes of exposure before risking a burn. Conversely, the winter months of January, February, November, and December feature a low UV Index of 1 or 2, with burn times of 45 minutes, making them safer for prolonged outdoor activities. It’s essential for visitors and residents alike to scale their sun exposure accordingly, ensuring proper skin protection during the high-risk months and enjoying the lower risks opportunistically in the winter.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Jonstorp | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
| Malmoe UVI | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |