Last updated: June 2, 2025
In Ustikolina, Bosnia and Herzegovina, awareness of the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. Understanding UV levels not only helps prevent sunburn but also plays a key role in long-term skin health. With a Cfb climate, Ustikolina features varying UV exposure, peaking around noon with levels reaching up to 10. This means that during the summer months, residents and visitors should remain vigilant, taking appropriate precautions to enjoy the sun safely while minimizing the risk of skin damage.
The UV Index begins its ascent at 07:00 with a gentle 1, setting a calm tone for the morning. By 08:00, it spikes to 3, hinting at increasing sun exposure. As the clock strikes 09:00, the index climbs further to 4, marking a cautious approach to outdoor activities. The peak arrives at 12:00, reaching a sizzling 10, indicating a powerful intensity of sunlight that calls for immediate sun protection. Even through the afternoon, 13:00 holds steady at 10, encouraging vigilance under the sun. The index begins to descend, dropping to 9 by 14:00, then gradually tapering off to 5 at 16:00, and easing to 3 by 17:00. As twilight sets in, the UV Index retreats to 2 at 18:00 and down to 1 by 19:00, signaling a soft end to the day's sunlight intensity. Remember to take care during those peak hours for optimal sun safety!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | 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 |
As the seasons change, so does the UV Index, reflecting fluctuations in UV radiation exposure throughout the year. The highest risk months generally occur from April to August, where the UV Index reaches peak levels of 8 to 10, indicating very high exposure and a burn time as short as 15 minutes. Visitors and residents are strongly advised to take protective measures during these months, such as wearing sunscreen, sunglasses, and protective clothing. In contrast, January and December are safer months with a low UV Index of 2, allowing for longer exposure times of 45 minutes. However, even during moderate months like February, October, and November, UV precautions remain important, as burn times drop to 30 minutes. Staying informed and protecting your skin year-round is essential for health and 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 UVI | 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 |
| Ustikolina | 2 | 4 | 7 | 8 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |