Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Valky, Ukraine, especially as the sun’s rays can pose serious health risks, such as sunburn and long-term skin damage. With a Dfb climate, Valky experiences fluctuating UV levels, peaking at 8 during midday—an indication that even brief sun exposure can be harmful. Staying informed about these UV levels not only helps in planning outdoor activities but also promotes better skin health by encouraging proactive sun protection measures. Whether you're enjoying a sunny day at the park or engaging in outdoor chores, understanding the UV Index is essential for safeguarding your skin against harmful radiation.
Starting early in the morning, the UV Index begins at a mild 1 at 07:00, gradually rising through the hours. By 09:00, it reaches 4, marking the onset of stronger sunlight. The intensity peaks between 11:00 and 13:00, with a robust 8, indicating a high risk of harm from unprotected sun exposure. From there, it starts to gradually decline, dipping to 6 by 15:00 and falling further to 4 at 16:00. As the sun begins to set, the index decreases significantly, dropping back to 1 by 18:00 and maintaining that lower level until evening. This day’s UV trends serve as a reminder to protect your skin during peak hours, especially when the index is at its highest.
| 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 | 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 | 4 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal changes, influencing the risk of sunburn for visitors and residents. During the winter months of January and February, the UV Index remains low at 2, allowing for a generous burn time of 45 minutes. As spring approaches, March sees a moderate increase to 5, with a reduced burn time of 30 minutes. The risk elevates in April and May, reaching 6 and 7 respectively, indicating high exposure levels. June and July peak with a very high UV Index of 8, necessitating careful sun protection with only 15 minutes before burning occurs. In August and September, the index slightly diminishes to 7 and 6 but remains high, while October drops to a moderate 4. Finally, the UV exposure returns to low levels in November and December. Advising visitors and residents to be particularly cautious during the high-risk months of June and July, it is essential to wear appropriate sunscreen and protective clothing, especially when spending extended time outdoors.
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 |
| Kharkiv UVI | 2 | 2 | 4 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 1 |
| Valky | 2 | 2 | 5 | 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 |