Last updated: May 3, 2025
Understanding the UV Index in Alstermo, Sweden, is crucial for ensuring skin health and preventing sunburn, particularly in a climate that experiences a range of UV exposure throughout the year. With typical peak values reaching up to 6 during the late morning and early afternoon, it's vital for residents and visitors alike to grasp the risks associated with UV radiation. By staying informed about daily UV levels, you can enjoy the beautiful outdoors while protecting your skin from harmful effects. In Alstermo's Cfb climate, awareness of changing UV Index values can help you take necessary precautions and fully enjoy the sun safely.
At dawn, the UV Index starts gently at 1 at 07:00, offering minimal risk. As the sun rises, it steadily climbs, reaching 2 by 08:00 and hitting 3 at 09:00. By 10:00, it escalates to 4, signaling a moderate level of solar intensity. The peak hour arrives at 12:00, with the index soaring to 6, indicating a high risk for harm from unprotected sun exposure. This intensity remains at 6 until 13:00, before beginning to decline. By 14:00, it dips to 5, decreasing further to 4 at 15:00. As the day wanes, the index falls to 3 at 16:00, then to 2 by 17:00 and 18:00, finally settling back at 1 by 19:00, signaling a calm end to the day’s sun exposure. Be mindful during those peak hours to protect your skin!
| 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 | 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 |
Throughout the year, the UV Index experiences notable seasonal changes, peaking from late spring to summer. High-risk months for UV exposure are May through August, with the UV Index reaching as high as 7 during June and July, necessitating increased caution for both visitors and residents. In these months, the burn time decreases significantly to just 25 minutes, indicating the need for protective measures such as sunscreen and clothing. As the seasons transition into fall and winter, UV levels drop, with January, February, October, November, and December classified as low-risk months, allowing for longer exposure times of 45 minutes without significant risk. Overall, it is crucial for everyone to be aware of these fluctuations and to take appropriate precautions, particularly during the higher risk months.
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 |
| Alstermo | 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 |