Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors in Horni Lidec, Czech Republic, as it provides essential information about the sun’s ultraviolet radiation levels. With UV exposure being a significant risk factor for sunburn and long-term skin health issues, knowing when to seek shade or apply sunscreen can help protect your skin. Nestled in a Dfb climate zone, Horni Lidec experiences varying UV levels throughout the day, peaking at an impressive 9 between 1 PM and 2 PM, which means it’s vital to stay informed and safe during the summer months. Be proactive in safeguarding your skin by staying aware of the UV Index!
As the sun rises, the UV Index begins its ascent, reaching a gentle 1 at 07:00. By 08:00, it doubles to 2, slowly warming up for the day ahead. Things heat up significantly by 09:00, hitting 4, and by 10:00, it climbs to a peak of 6. The zenith arrives at 12:00, where the index stands tall at 8, and by 13:00, it reaches a sizzling 9—the highest point of the day. As the afternoon wears on, the UV intensity begins to wane, dropping to 8 at 14:00 and then to 6 at 15:00. By 16:00, it cools further to 5, retreating to 3 by 17:00. The evening brings relief as the UV Index transitions back down to 2 at 18:00 and finally returns to a mild 1 by 19:00. This hourly journey highlights the importance of sun safety, especially during those midday hours when the UV rays are at their fiercest.
| 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 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal changes that highlight periods of increased sun exposure risk. High-risk months are primarily from April through August, when the UV Index peaks at 9 in June and remains at 8 in July and 7 in May and August, categorizing them as very high and high exposure respectively, with burn times as short as 15-25 minutes. In contrast, winter months like January and December show much lower UV levels, categorized as low, allowing for longer burn times of 45 minutes. Visitors and residents should remain vigilant during high-risk months, taking precautions such as wearing sunscreen, sunglasses, and protective clothing during peak hours, while enjoying the outdoors safely.
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 |
| Horni Lidec | 2 | 3 | 5 | 6 | 7 | 9 | 8 | 7 | 6 | 4 | 2 | 1 |
| 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 |