Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Perna, Czech Republic, as it plays a vital role in protecting your skin from the harmful effects of ultraviolet radiation. With the potential for sunburn and long-term skin health risks, being aware of daily UV levels can significantly impact how you enjoy the outdoors. In this Cfb climate zone, the UV exposure can be surprisingly intense, particularly around midday when levels reach up to 8. Make informed choices about sun safety to ensure a vibrant and healthy experience in the beautiful surroundings of Perna.
The UV Index throughout the day exhibits a clear peak around midday. Starting from a low of 1 at 07:00, the intensity gradually escalates, hitting 3 by 09:00 and reaching its zenith of 8 at 13:00. As the sun climbs higher, the UV Index stands at 7 at 12:00, indicating a strong potential for skin damage without protection. The intensity starts to dip after 14:00, descending to 6 by 15:00, and further declining to 1 by 18:00, where it remains until sunset. This hourly data underscores the importance of sun protection during the peak hours of 11:00 to 14:00, ensuring safety while enjoying outdoor activities!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, with the highest levels occurring from May to July, categorized as very high with a burn time of just 15 minutes. April marks the transition into higher UV exposure, registering a UV Index of 6 and a high exposure category. Conversely, the winter months of January, November, and December remain in the low exposure category, with burn times up to 45 minutes. Visitors and residents should be particularly cautious during the high-risk months of May, June, and July, when it is crucial to seek shade, wear protective clothing, and apply sunscreen regularly to minimize the risk of skin damage. As the UV Index decreases in the fall and winter, vigilance can be relaxed, but some level of sun protection remains advisable year-round.
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 |
| Perna | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |