Last updated: May 3, 2025
Understanding the UV Index is essential for residents and visitors of Osijek, Croatia, especially during the sunny months when UV exposure peaks. With its Cfb climate, Osijek enjoys a mix of warm summers and cooler winters, but during the summer months, UV levels can rise significantly, reaching a maximum of 8 around midday. Awareness of these levels is crucial for sunburn prevention and maintaining long-term skin health. By knowing when the UV Index is elevated, you can take proactive measures to protect yourself, enjoy the beautiful outdoor spaces in Osijek, and keep your skin safe from the harmful effects of UV radiation.
The UV Index throughout the day showcases a dynamic pattern of sun exposure. Starting at 7:00 AM, the index remains low at 1, gradually climbing to 2 by 8:00 AM. As the sun rises higher, we see a significant leap, peaking at 8 between 12:00 PM and 1:00 PM. This mid-day surge, marked by a UV Index of 7 and 8, signals that it's essential to protect your skin during these hours. Thankfully, the intensity wanes as the afternoon unfolds; by 4:00 PM, it diminishes to 4, and drops to 1 by 7:00 PM, marking a return to safer levels. Remember to be sun-smart during the high UV hours for a healthy day out!
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 5 | moderate | 30 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, the UV Index fluctuates markedly, with high-risk months typically occurring from April to August. During this period, the UV Index regularly reaches very high levels, particularly in May, June, and July, where a burn time of just 15 minutes indicates an increased risk of skin damage. As the year transitions towards autumn and winter, the UV Index drops to moderate and then low, with safer exposure times of 30 to 45 minutes in effect during the colder months. Visitors and residents are advised to take precautions during the high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the sun's rays are strongest. Staying informed about the daily UV Index can help ensure safe and enjoyable outdoor activities year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Osijek | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Zagreb UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 5 | 3 | 2 |
| Rijeka UVI | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Zadar UVI | 2 | 4 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 5 | 3 | 2 |
| Split UVI | 2 | 4 | 6 | 7 | 8 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |