Last updated: May 3, 2025
Understanding the UV Index in Mostar, Bosnia and Herzegovina is crucial for safeguarding your skin and overall health under the sun. The UV Index measures the intensity of ultraviolet radiation, which can lead to sunburn and long-term skin damage if proper precautions aren't taken. With Mostar's picturesque climate characterized by warm summers, the UV exposure can reach significant levels, especially between 11:00 AM and 2:00 PM, when values peak at 9. Being aware of these UV levels not only helps prevent immediate discomfort but also reduces the risk of serious skin conditions in the future. Stay informed and protect yourself while enjoying the stunning beauty that Mostar has to offer!
The UV Index today starts off gracefully, peaking at 1 by 07:00, indicating low sun exposure. As the morning progresses, it climbs steadily, hitting 2 by 08:00 and reaching 4 by 09:00. The sun's intensity builds, soaring to 6 at 10:00 and escalating to a robust 7 by 11:00. The highest point occurs at 12:00, with a striking 8, followed by a maximum of 9 at 13:00, marking the day’s sunniest moment. After this peak, the UV Index begins to decline, dropping back to 8 at 14:00, then down to 6 by 15:00. The late afternoon sees further decrease, falling to 4 at 16:00, before settling back to 2 by 17:00 and returning to 1 from 18:00 to 19:00. It's a day that encourages savvy sun safety, especially during the midday hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV exposure highlight significant fluctuations in the UV Index. The months of May through August are particularly high-risk, with UV Index values reaching a peak of 10, indicating very high exposure and a burn time of only 15 minutes. Visitors and residents should remain vigilant during these months, employing protective measures such as sunscreen and clothing, especially between 10 AM and 4 PM when UV exposure is strongest. March and April also show increased risk with UV Index values of 6 and 7 respectively. Conversely, January and December present lower risk levels, with UV Index values of 2 indicating low exposure and longer potential burn times of 45 minutes. It is essential to monitor UV levels year-round and adjust sun protection strategies accordingly to ensure safety.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Banja Luka UVI | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Tuzla UVI | 2 | 4 | 6 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Zenica UVI | 2 | 4 | 6 | 7 | 8 | 10 | 10 | 8 | 7 | 5 | 3 | 2 |
| Mostar | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |
| Sarajevo UVI | 3 | 4 | 7 | 8 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |