Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Bykivka, Ukraine, where the climate can bring varying levels of sun exposure. With typical UV levels peaking at 8 between midday and early afternoon, being aware of these fluctuations is essential for sunburn prevention and maintaining skin health. In Bykivka’s Dfb climate zone, where summers can be warm and sunny, understanding UV levels helps you take necessary precautions against harmful rays, ensuring you enjoy the outdoors safely while protecting your skin from potential damage.
The UV Index throughout the day showcases a gradual rise in intensity, peaking at 8 between 1 PM and 2 PM, making this the most critical time for sun exposure. Starting the morning with a low index of 1 at 7 AM, the values steadily increase as the sun climbs higher; by 10 AM, it reaches 5, indicating moderate sun strength. As the sun continues its ascent, the index climbs to 6 at 11 AM and further escalates to 7 at noon, urging sun safety precautions. After hitting the afternoon high of 8, the index tapers off, dropping to 6 by 3 PM, before gradually descending to 1 by 7 PM. This daily cycle emphasizes the importance of protective measures during midday hours when the UV rays are at their strongest.
| 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 | 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, UV Index levels show significant seasonal changes, with higher values indicating increased risk for skin damage. The low-risk months are January, February, November, and December, where the UV Index remains at 2, allowing for a burn time of 45 minutes. As spring approaches, March sees a rise to a moderate risk with an index of 4 and a reduced burn time of 30 minutes. The summer months of June and July peak with a very high UV Index of 8, leading to a minimum burn time of just 15 minutes. April and May also present high-risk levels of 6 and 7 respectively, suggesting caution with a burn time of only 25 minutes. August and September maintain high UV levels of 7 and 6, emphasizing the need for protective measures as burn times last 25 minutes. In October, the risk decreases to moderate, with a return to a 30-minute burn time. Residents and visitors should prioritize sun safety during March through September, ensuring the use of sunscreen, protective clothing, and regular sun breaks during peak hours to limit UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kyiv UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Bykivka | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |
| 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 |