Last updated: July 2, 2025
In Cerna Hora, Czech Republic, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels, particularly during the peak hours of 11 AM to 3 PM when the index reaches as high as 8, can significantly reduce your risk of sunburn and long-term skin damage. Nestled in a Cfb climate zone, Cerna Hora experiences a temperate climate that can still expose residents and visitors to harmful UV rays, making it essential to stay informed and take precautions during outdoor activities. Safeguard your skin while enjoying the beauty of this charming region!
As the sun rises, the UV Index begins its steady climb, starting from a gentle 1 at 7:00 AM. By 10:00 AM, it reaches 5, signaling an increase in UV exposure. The peak occurs at 12:00 PM, hitting a robust 8, where caution is advised, especially for outdoor activities. The intensity remains high at 8 from 1:00 PM to 2:00 PM, encouraging sun protection measures. As the afternoon progresses, the index gradually declines to 6 at 3:00 PM, then further to 3 by 5:00 PM. Finally, as the day winds down, the UV Index settles at 1 by 7:00 PM, reflecting a much safer environment for evening activities. Enjoy the sun, but remember to protect your skin during those peak hours!
| 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 | 5 | moderate | 30 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 | 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, UV exposure varies significantly, peaking during the summer months. January through March sees low to moderate UV levels, with burn times ranging from 30 to 45 minutes. As April arrives, the UV Index intensifies, reaching a high level of 6, and culminating in the summer with very high UV ratings of 8 to 9 in May and June. The peak risk months for UV exposure are May through July, when burn times can be as short as 15 minutes. As the seasons transition into August and September, the risk remains high, though slightly reduced. Visitors and residents should take precautions during these high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during midday hours. As the year winds down, from October to December, UV exposure decreases, returning to low levels in the winter.
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 |
| Cerna Hora | 2 | 3 | 4 | 6 | 8 | 9 | 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 |