Last updated: June 2, 2025
Awareness of the UV Index is crucial for residents of Osiek, Poland, where the cool summers of the Cfb climate zone can still conceal significant dangers from the sun. Understanding UV levels is essential for sunburn prevention and maintaining long-term skin health, especially as midday readings can climb to a max of 8, indicating a high risk of harm. With typical UV exposure peaking between 11:00 AM and 1:00 PM, it’s important to stay informed and take necessary precautions to protect yourself and your loved ones from harmful ultraviolet rays.
As the sun rises, the UV Index begins its ascent, starting at a manageable 2 by 7:00 AM. By 8:00 AM, it climbs to 3, signaling the need for some sun protection. The intensity reaches 4 by 9:00 AM, and by 10:00 AM, it spikes to 6. The peak occurs at 12:00 PM and 1:00 PM with a robust 8, indicating a high risk of harm from unprotected sun exposure. Fortunately, the intensity wanes after 1:00 PM, descending to 7 at 2:00 PM and 6 by 3:00 PM. As the afternoon fades, the UV Index drops to 4 by 4:00 PM and continues to decrease, reaching 1 by 6:00 PM and 7:00 PM. This pattern highlights the importance of sun safety during midday hours when the UV exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 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 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 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, the UV Index exhibits notable seasonal fluctuations, significantly influencing exposure risks for both residents and visitors. The high-risk months for UV exposure are typically from April to August, where the index peaks at 8 during June and July, indicating very high exposure levels with a burn time of just 15 minutes. March marks the transition into the moderate category with an index of 4, while from October to February, the risk decreases to the low category, allowing for extended burn times of 45 minutes in winter months. Visitors and residents are strongly advised to take precautionary measures when UV levels are moderate or higher, particularly by seeking shade, wearing protective clothing, and applying sunscreen regularly during the higher index months to safeguard against harmful sun exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Warsaw UVI | 1 | 2 | 4 | 5 | 6 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Poznan UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Lodz UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Wroclaw UVI | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Osiek | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Krakow UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |