Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Lesnice, Czech Republic, where the climate can lead to significant sun exposure, especially during the summer months. Proper awareness of UV levels can play a vital role in preventing sunburn and safeguarding skin health, as elevated indices—such as those reaching up to 8 between 12 PM and 2 PM—pose considerable risks. Lesnice's humid continental climate further accentuates these challenges, making it essential to stay informed about daily UV levels, ensuring outdoor activities remain enjoyable while keeping your skin protected!
The UV Index for the day shows a dynamic and telling progression in sun exposure. Starting off at a mere 1 at 7:00 AM, the index climbs steadily throughout the morning. By 10:00 AM, it reaches a moderate 6, peaking at a robust 8 from 12:00 PM to 14:00 PM when the sun is at its strongest. As the afternoon wanes, the index gracefully descends; by 16:00 PM, it sits at 5 and continues to drop, landing back at 1 by 19:00 PM. This data underscores the importance of protection during the midday hours, urging everyone to stay shielded from potential harm when the sun’s rays are at their most intense.
| 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 | 8 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do UV levels, significantly impacting sun safety for visitors and residents. January and February start with a low to moderate UV Index, with burn times ranging from 30 to 45 minutes. However, from March to August, the UV Index rises sharply, reaching very high levels of 8 in June and July, with reduced burn times of just 15 minutes. High-risk months include June, July, and August, when precautions are essential to prevent sunburn and long-term skin damage. By September, UV levels begin to decrease, eventually returning to low levels by November and December. It is crucial for everyone to use sunscreen, wear protective clothing, and limit sun exposure, especially during the peak months.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prague UVI | 2 | 3 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Ostrava UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Olomouc UVI | 2 | 3 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |
| Pilsen UVI | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Brno UVI | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |
| Lesnice | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |