Last updated: June 2, 2025
In Yasnaya Polyana, awareness of the UV Index is crucial for ensuring skin health and preventing sunburn. The daily fluctuations in UV radiation, especially during the peak hours between 10:00 AM and 1:00 PM when levels reach 8, highlight the importance of understanding UV levels in this Dfb climate. With its distinct seasonal changes, Yasnaya Polyana experiences varying UV exposures throughout the year, making it essential for residents and visitors alike to stay informed and take protective measures when enjoying the outdoors.
The UV Index data reveals a dynamic and engaging sun exposure experience throughout the day. Starting at 7:00 AM, the index gradually rises from 2, signaling mild solar intensity. By 9:00 AM, it reaches 4, perfect for a morning walk under the sun. The peak occurs around 12:00 PM and 1:00 PM, where it hits a high of 8, indicating that sunscreen and shade are essential. As the afternoon progresses, the index slips to 7 at 2:00 PM and further down to 5 by 3:00 PM, before gradually declining to 1 by 6:00 PM. This fluctuation not only emphasizes the need to be sun-safe during the peak hours but also encourages outdoor enjoyment as the day cools down.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 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 | 5 | moderate | 30 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 |
The UV Index demonstrates notable seasonal changes, peaking during the summer months. From January to March, UV exposure is low, with a maximum burn time of 45 minutes. As we transition into spring, April sees a moderate rise to a UV Index of 5, reducing burn time to 30 minutes. The risk escalates significantly in May and June, with a high UV Index of 7 and 8, respectively, where burn times drop to 25 minutes and 15 minutes. July and August maintain a high UV Index of 7, reminding visitors to protect their skin with ample shade and sunscreen. With a decrease in UV exposure in September and October, the UV Index drops to 5 and 3, allowing for safer outdoor activities before reverting to lower levels in November and December. Therefore, May through August are considered the high-risk months for UV exposure, and it is advisable for residents and visitors to be vigilant about using sun protection during these periods to prevent skin damage.
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 |
| Novosibirsk UVI | 1 | 2 | 4 | 5 | 7 | 7 | 6 | 6 | 5 | 3 | 1 | 1 |
| Yasnaya Polyana | 2 | 2 | 4 | 5 | 7 | 8 | 7 | 7 | 5 | 3 | 2 | 1 |