Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Zwolen, Poland, where the combination of a temperate climate and varying seasonal sunlight presents unique exposure risks. Monitoring UV levels helps safeguard against harmful effects such as sunburn and long-term skin damage, ensuring you can enjoy the sunshine while prioritizing your skin health. With peak UV readings reaching as high as 8 around midday, it’s essential to be aware of these fluctuations and take necessary precautions. Whether you’re soaking up the summer sun or enjoying spring and autumn warmth, knowing the UV Index empowers you to make informed decisions about sun safety.
The UV Index throughout the day reveals a notable peak in sun exposure between 12:00 PM and 1:00 PM, where it reaches a maximum of 8. Starting from the early morning at 7:00 AM with a minimal reading of 1, the index gradually climbs as the sun rises, hitting 3 by 8:00 AM and reaching 6 at 10:00 AM. The intensity continues to escalate, peaking at 11:00 AM with a 7, before reaching its zenith at 12:00 PM. Following this midday spike, the UV levels begin to decline, dropping back to 4 by 4:00 PM and tapering off to 3 by 5:00 PM. As the evening approaches, the index diminishes significantly, falling to 1 by 6:00 PM, making it crucial to seek shade or apply sunscreen during those peak hours for optimum skin protection.
| 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 | 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 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with the highest risk months occurring from May to August. During this period, the UV Index peaks at 8, indicating a very high exposure category, particularly in June and July, which results in a reduced burn time of only 15 minutes. Visitors and residents should take precautions during these months by seeking shade, wearing protective clothing, and applying sunscreen regularly. In contrast, the low-risk months from November to February feature a UV Index of 1-2, where an exposure time of 45 minutes is generally safe. As spring approaches, starting in March, the UV levels begin to increase, warranting extra care as the burn time decreases significantly by May. To ensure safety, it is advisable to monitor seasonal UV changes and adjust sun safety practices accordingly.
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 |
| Zwolen | 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 |
| Krakow UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |