Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Knin, Croatia, especially as the sun can pose significant risks to skin health. With the Mediterranean climate bringing plenty of sunshine throughout the year, knowing the UV levels helps in preventing sunburn and reducing long-term damage. During peak hours, particularly around midday, the UV Index can soar up to 9, indicating a high risk of harm from unprotected sun exposure. Being informed about these levels allows you to take necessary precautions, ensuring your time spent enjoying the beautiful Croatian outdoors remains safe and healthy.
The UV Index throughout the day paints a clear picture of the sun's intensity. Early morning starts gently at 1 around 07:00, but as the day progresses, the UV levels rise sharply, peaking at a robust 9 between 13:00 and 14:00. This midday surge emphasizes the importance of sun protection during the sunniest hours. By 15:00, the index begins to decline, settling down to 6, then tapering off to 3 by 17:00, and finally returning to a more manageable 1 as the sun sets. Whether you're planning outdoor activities or seeking shade, it's crucial to stay aware of the UV levels throughout the day!
| 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 | 3 | moderate | 30 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Osijek UVI | 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 |
| Knin | 2 | 4 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |