Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Stara Ves, Czech Republic, as it plays a vital role in safeguarding your skin against harmful ultraviolet rays. With a Cfb climate characterized by warm summers, UV exposure can reach concerning levels, peaking at 8 during midday hours—when the risk of sunburn and long-term skin health issues increases significantly. By being aware of the UV levels throughout the day, you can take proactive measures to protect yourself, ensuring enjoyable, safe outdoor experiences while minimizing the risk of skin damage. Stay informed and stay safe!
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 |
The UV Index varies significantly throughout the year, reflecting changes in seasonal sun exposure. January and November exhibit low UV levels (Index 2) with a burn time of 45 minutes, while February and October show moderate levels (Index 3 and 4) with a burn time of 30 minutes. The risk escalates from March (Index 5) to June and July, where it reaches very high levels (Index 8), necessitating caution with a burn time of only 15 minutes. August and September maintain high levels (Index 6 and 7), with a burn time of 25 minutes. Visitors and residents should be particularly vigilant during the high-risk months of April to August, where sunscreen, protective clothing, and limited sun exposure are crucial to prevent skin damage. Always remain aware of the daily UV Index to stay safe in the sun!
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 |
| Stara Ves | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |