Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Lesna, Poland, where the Dfb climate brings a mix of warm summers and cool winters. As the sun's rays can pose serious risks, recognizing and monitoring UV levels is vital for effective sunburn prevention and maintaining skin health. With peak UV indices reaching as high as 9 between 12:00 PM and 1:00 PM, it’s essential to protect yourself, especially during the summer months when exposure risks are significantly heightened. Stay informed, stay safe, and enjoy the beautiful sunny days Lesna has to offer!
At 7:00 AM, the UV Index starts gently at a maximum of 1, perfect for those early risers. As the sun climbs higher, by 10:00 AM, it escalates to 6, signaling the need for some sun protection. The peak intensity occurs at 12:00 PM, reaching 9, making it crucial to seek shade or apply sunscreen during the midday hours. Following this, the index begins to taper off; by 3:00 PM, it drops to 6, and continues to slide to 2 by 6:00 PM. This gradual decline offers a beautiful reminder of the sun's power and the importance of its respect, particularly in the high afternoon. It’s a day that starts soft but showcases the sun’s full brilliance by midday!
| 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 | 8 | very high | 15 min |
| 12:00 | 9 | 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 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV radiation levels change significantly, with high-risk months identified as April through August. During this period, the UV Index peaks in June at a very high level of 9, requiring careful sun exposure management with a burn time of just 15 minutes. Visitors and residents should take special precautions and limit sun exposure during these months, wearing protective clothing, applying sunscreen, and seeking shade when UV levels are elevated. In contrast, low-risk months occur from November to February, where the UV Index remains between 1 and 2. Strategies for skin protection can be relaxed during these colder months, but awareness of changing conditions remains important.
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 |
| Krakow UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Lesna | 2 | 2 | 5 | 6 | 7 | 9 | 8 | 7 | 6 | 4 | 2 | 1 |