Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Chaadayevka, Russian Federation to protect skin health and prevent sunburn, especially during peak sunlight hours. With a Dfb climate that experiences distinct seasonal changes, the UV exposure can significantly vary, making it imperative to stay informed. During summer months, for instance, the UV Index can soar to 8 around noon, signaling a high risk of harm from unprotected sun exposure. By staying aware of UV levels, you can enjoy the sunshine while safeguarding your skin against potential damage.
As the sun rises, so does the UV Index, peaking in the late morning to early afternoon. At 07:00, the index starts at a modest 2, but by 08:00, it climbs to 4. The real surge begins at 09:00 with a reach of 5, and by 10:00, it escalates to an impressive 7. The heights are reached between 11:00 and 12:00, where it stabilizes at a high of 8—a clear reminder for sun protection. Early afternoon sees a gentle decline, with values dropping to 7 at 13:00, then gradually to 6 by 14:00. The late afternoon offers relief as it cools to 5 at 15:00 and continues to fall, landing at 2 by 17:00. As the sun sets, the UV Index dwindles to 1 by 18:00 and maintains this low level through 19:00, making for a safe evening outdoors.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 5 | 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 |
Throughout the year, the UV Index exhibits significant seasonal variations that highlight the varying risk of UV exposure. From January to February, the UV Index remains low, with a burn time of 45 minutes; however, as we move into March, the index rises to 5, indicating a moderate risk with a reduced burn time of 30 minutes. The months of April and May mark a transition into high-risk territory, with an index of 6 and 7, and a burn time of just 25 minutes. The peak UV Index of 8 occurs in June, categorized as very high, where one can burn within 15 minutes of exposure. July and August maintain high exposure levels at an index of 7, necessitating caution for 25 minutes of sun exposure. As fall approaches in September and October, the risk decreases to moderate levels again, with indices of 5 and 3, respectively, and burn times returning to 30 minutes. The low-risk months of November and December bring the UV Index back to 2 and 1, allowing for longer exposure times of 45 minutes without significant risk. Visitors and residents should remain vigilant during the high-risk months of April through August to apply sunscreen and seek shade, while the winter months offer a reprieve from the sun's most intense rays.
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 |
| Chaadayevka | 1 | 2 | 5 | 6 | 7 | 8 | 7 | 7 | 5 | 3 | 2 | 1 |