Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Hosteradice, Czech Republic, where sun exposure can shift dramatically throughout the day. With UV levels peaking between 11:00 AM and 3:00 PM, awareness of the sun’s intensity is vital for preventing sunburn and protecting your skin health. In this temperate climate (Cfb), the potential for harmful UV rays increases, particularly during the summer months. By staying informed about the UV Index, you can enjoy the outdoors safely while minimizing the risk of skin damage.
As the sun rises, UV Index levels gradually climb, starting at a mild 1 by 07:00. By 09:00, the index reaches 4, prompting early risers to take note. The real intensity kicks in from 10:00, peaking at 8 between 12:00 and 14:00. This is the time to protect your skin, as the UV exposure is at its highest. Following this zenith, the levels start to taper off, dropping to 6 by 15:00, and declining further as evening approaches. By 17:00, the UV Index lowers to 3, and as the sun sets, it gracefully dims to 1 by 19:00. Remember, while the midday sun may shine brightly, it’s essential to stay vigilant and enjoy the outdoors safely!
| 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 | 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 notable seasonal variations that are crucial for visitor and resident safety. From January to February, the UV levels are relatively low to moderate, allowing for longer exposure times of up to 45 minutes in January and 30 minutes in February. However, as spring arrives in March with an increase to a UV Index of 5, residents should start to exercise caution. The months of April to July present the highest risk, marked by very high UV levels (8) and reduced burn times of just 15 minutes. As summer transitions to fall, August and September maintain high UV levels (6-7), requiring vigilance, especially as burn times decrease to 25 minutes. By October, the risks diminish to moderate levels, while November and December revert back to low, allowing for longer exposure without significant harm. Visitors and residents are advised to take preventive measures during high-risk months, particularly from April through July, by wearing appropriate sun protection, including sunscreen, hats, and UV-blocking clothing, to minimize the risk of skin damage.
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 |
| Hosteradice | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |
| Brno UVI | 2 | 3 | 5 | 6 | 8 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |