Last updated: July 2, 2025
In Olesnice, Czech Republic, being aware of the UV Index is essential for protecting your skin from harmful ultraviolet radiation. Understanding UV levels not only helps prevent painful sunburn but also plays a critical role in overall skin health and reducing long-term risks such as skin cancer. With a Cfb climate, Olesnice experiences varied weather throughout the year, but during sunny days, the UV Index can spike, reaching a maximum of 8 between noon and 2 PM. This makes it crucial for residents and visitors to stay informed about UV exposure risks, especially during peak daylight hours when protective measures are most needed.
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 |
| Olesnice | 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 |