Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Tvirzha, Ukraine, where sun exposure can pose significant risks, especially during the hot summer months. Knowing the daily UV levels helps in preventing sunburn and safeguarding skin health, making it essential to stay informed. With an average maximum UV Index peaking at 8 around midday, Tvirzha's Dfb climate brings both beauty and challenges, requiring vigilance against harmful ultraviolet rays. Protect your skin and enjoy the sun responsibly by staying updated on the UV Index in your area!
The UV Index throughout the day reveals a distinct pattern of increasing intensity as the sun rises. At 07:00, the index starts at a mild 1, gradually climbing to 2 by 08:00. As the day progresses, the intensity ramps up, peaking at an impressive 8 during the hours of 13:00 and 14:00—a clear indication that midday sun is at its most potent. After this height, the index begins to descend, dropping back to 6 at 16:00, and later settling at a more manageable 1 by 19:00. This hourly data clearly underscores the importance of sun protection during the midday hour for outdoor activities.
| 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 | 4 | 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 | 7 | high | 25 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels fluctuate significantly, impacting the risk of sunburn and the need for protective measures. From January to March, the UV Index remains relatively low, ranging from 2 to 4, meaning burnout time is longer, and exposure is generally safe. However, as April and May approach, the UV Index rises to 6 and 7, categorizing them as high, with burn times shortening to 25 minutes. The summer months of June and July present the highest risk, reaching a peak UV Index of 9 and 8 respectively, classified as very high; this drastically reduces safe exposure to just 15 minutes. Moving into August and September, the risk remains elevated with UV Index values of 7 and 6. As we enter the cooler months, October to December, the UV Index decreases again to 2 to 4, returning to a low-risk category. Residents and visitors should take special care during the high-risk months from April to September, using sunscreen, wearing protective clothing, and minimizing sun exposure, particularly during peak hours to safeguard against harmful UV rays.
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 |
| Tvirzha | 2 | 3 | 4 | 6 | 7 | 9 | 8 | 7 | 6 | 4 | 2 | 2 |
| 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 |