Last updated: July 2, 2025
In Bol'shoy Oyesh, Russian Federation, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels can guide you in preventing sunburn and protecting against long-term skin damage. With a humid continental climate (Dfb) that features warm summers and varying UV exposure, the risks can elevate during peak hours. As the UV Index reaches a high of 6 between 12:00 PM and 3:00 PM, it's essential to stay informed and take necessary precautions to enjoy the sun safely.
The UV Index throughout the day shows a gradual rise, peaking at 6 between 12:00 PM and 3:00 PM, signaling the intensity of sunshine during these hours. Beginning the day at a low 1 at 7:00 AM, it slowly climbs to 2 by 9:00 AM. As the sun reaches its zenith, the index escalates to 5 at 11:00 AM before hitting the top mark of 6 at 12:00 PM. This strong UV exposure continues until 3:00 PM, and then a decline begins, dropping to 3 by 5:00 PM and tapering off to 1 by 7:00 PM. With such fluctuating values, it's vital to stay protected during the midday hours when the sun's rays are most potent.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | 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 |
Throughout the year, the UV Index exhibits noticeable seasonal changes that have important implications for both visitors and residents. During the winter months (January, February, November, December), the UV Index remains low (1-2), allowing for safe outdoor activities with a burn time of 45 minutes. As spring approaches (March, April), the UV Index rises to moderate levels (4-5), significantly decreasing the burn time to 30 minutes, urging individuals to start employing sun protection. Summer months (May through August) present the highest UV risks, with values reaching 7 (high category) in May and June, and continuing to a UV Index of 6 in July and August. This period requires vigilant sun safety measures, as burn times drop to 25 minutes. Finally, autumn (September, October) sees a decrease back to moderate levels (5-3), allowing for a burn time of 30 minutes once again. It's crucial for everyone to adapt their sun protection strategies accordingly, especially during the high-risk months of May through August, when sunscreen, hats, and protective clothing should be prioritized.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Saint Petersburg UVI | 1 | 2 | 3 | 4 | 5 | 7 | 7 | 5 | 4 | 2 | 1 | 1 |
| Nizhniy Novgorod UVI | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
| Yekaterinburg UVI | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 1 | 1 |
| Moscow UVI | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 5 | 3 | 2 | 1 |
| Bol'shoy Oyesh | 1 | 2 | 4 | 5 | 7 | 7 | 6 | 6 | 5 | 3 | 1 | 1 |
| Novosibirsk UVI | 1 | 2 | 4 | 5 | 7 | 7 | 6 | 6 | 5 | 3 | 1 | 1 |