Last updated: July 2, 2025
Awareness of the UV Index is crucial for residents of Chistyye Bory in the Russian Federation, where the climate often influences outdoor activities and sun exposure. Understanding the daily fluctuations in UV levels is essential for preventing sunburn and maintaining skin health, especially during peak hours when the UV Index reaches levels of 5 to 6 from 10:00 AM to 2:00 PM. With a Dfb climate, characterized by warm summers, Chistyye Bory residents face unique UV exposure risks that make it imperative to stay informed and take proper precautions when enjoying the outdoors.
As the sun rises, the UV Index begins to climb, starting at a modest 2 at 7:00 AM. By 8:00 AM, it ticks up to 3, signaling a gentle increase in UV exposure. The intensity grows as the day progresses, peaking at 6 from 11:00 AM to 2:00 PM, making this the prime time for sun protection. As afternoon wanes, the Index dips back down—4 at 3:00 PM, then easing to 3 at 4:00 PM, 2 at 5:00 PM, and finally fading to 1 by 6:00 PM. With such a dynamic range, it's clear that midday vigilance is key for sun safety!
| 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 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 6 | high | 25 min |
| 13:00 | 6 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index varies significantly throughout the year, with high-risk months typically occurring from June to August, where the index reaches as high as 7 during June. These months fall into the high exposure category, with a burn time of only 25 minutes, emphasizing the need for extra protection against UV radiation. March to May also sees an increase in UV exposure, shifting to a moderate category with an index from 3 to 5 and a burn time of 30 minutes. In contrast, January, February, October, November, and December maintain a low risk, allowing for safer outdoor activities with longer burn times of 45 minutes. Visitors and residents are advised to be particularly cautious during the summer months by applying sunscreen, wearing protective clothing, and seeking shade during peak hours to minimize the risk of UV 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 |
| Chistyye Bory | 1 | 2 | 3 | 4 | 5 | 7 | 6 | 6 | 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 |