Last updated: June 2, 2025
Understanding the UV Index in Petrovice u Karvine is crucial for residents and visitors alike, as it provides vital information on the sun's intensity and its potential effects on skin health. With UV levels peaking at 8 during midday hours, awareness of these ratings can help prevent sunburn and mitigate the risks of long-term skin damage. Petrovice u Karvine, characterized by its Cfb climate, experiences varying UV exposure throughout the day, especially during the summer months when sun safety is paramount. Being informed about the UV Index not only promotes healthier skin but also encourages outdoor enjoyment while minimizing harm.
As the day unfolds, the UV Index rises steadily, peaking at 8 during midday hours, specifically at noon and 1 PM. This indicates a higher risk of harm from unprotected sun exposure, making it essential to take precautions during these hours. Starting the morning with a mild 1 at 7 AM, the UV Index climbs to 2 by 8 AM, gradually intensifying as it reaches 4 at 9 AM, and 6 at 10 AM. The intensity continues to soar as we approach noon, with 7 at 11 AM, before hitting that critical 8. As the afternoon progresses, there’s a gradual decline, with levels decreasing to 7 at 2 PM, then to 6 at 3 PM, and finally dipping to 3 by 5 PM. By evening, the UV Index settles back down to 2 at 6 PM and ultimately returns to a safe 1 by 7 PM, signaling a day of fluctuating sun exposure risks, highlighting the importance of sun safety throughout the 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 | 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 | 7 | high | 25 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 exhibits significant seasonal variations, with peak levels typically occurring during the summer months. January and February have low UV ratings (Index 2), allowing for relatively prolonged exposure without risk of burning (45 minutes). As spring approaches, March (Index 4) and April (Index 5) see a shift to moderate levels, reducing safe exposure times to 30 minutes. The high-risk months are May through August, where the UV Index reaches its highest points—7 to 8—requiring caution with burn times of just 15-25 minutes. September remains a high-risk month (Index 6) before it tapers back to moderate values in October (Index 4). By November and December, UV exposure risks reduce significantly. Residents and visitors are advised to stay vigilant during peak UV months, wearing protective clothing and sunscreen, especially between late spring and summer, to safeguard against skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Petrovice u Karvine | 2 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| 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 |