Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Oster, Ukraine, where the climate can lead to varying levels of sun exposure throughout the year. Being aware of UV levels is not only key to preventing painful sunburns but also plays a vital role in maintaining long-term skin health. With peak UV Index values reaching up to 8 in the afternoons, residents must be vigilant about sun protection, especially given Oster's Dfb climate that features warm summers. By staying informed about the UV Index, you can enjoy the outdoors safely while protecting your skin from harmful ultraviolet rays.
Experience the ebb and flow of the UV Index throughout the day, starting with a gentle 1 at 7:00 AM. As the sun rises higher, the index climbs steadily, peaking at a robust 8 by 1:00 PM—a clear signal to seek shade or apply sunscreen. The intensity of the rays begins to taper off in the afternoon, dropping back to 6 by 3:00 PM and continuing its descent to 1 by 7:00 PM. Whether you're planning outdoor activities or simply enjoying the sun, keep an eye on these UV levels to protect your skin while basking in the warmth!
| 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 | 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 | 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 exhibits significant seasonal changes, reflecting the sun's intensity throughout the year. From January to February, the UV levels remain low (UV Index 2), allowing for a burn time of 45 minutes, making these months relatively safe for outdoor activities. As spring approaches, March and April see a rise to moderate levels (UV Index 4 and 5, respectively) with shorter burn times of 30 minutes. The summer months of May to August pose the highest risks, particularly in June and July when the UV Index peaks at 8, corresponding to a very high exposure category and a burn time of only 15 minutes. September still carries a high risk (UV Index 6) before a gradual decline in October back to moderate levels (UV Index 3). November and December return to lower UV indices (UV Index 2 and 1), allowing for longer exposure times without risk. Visitors and residents should especially prioritize sun protection during May through September, employing sunscreen, hats, and seeking shade during peak hours to minimize UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oster | 2 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 |
| Kyiv UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Kharkiv UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Dnipro UVI | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 |
| Donetsk UVI | 2 | 3 | 5 | 6 | 8 | 9 | 8 | 8 | 6 | 4 | 2 | 1 |
| Odessa UVI | 2 | 3 | 5 | 7 | 8 | 9 | 8 | 8 | 7 | 4 | 3 | 2 |