Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Sergiyev Posad, especially during the warmer months when sun exposure can be at its peak. Awareness of UV levels helps in preventing sunburn and protecting skin health, ultimately reducing the risk of long-term damage. In this charming city, which experiences a Dfb climate with varied seasons, UV exposure can spike significantly, particularly around midday when readings reach a maximum of 7. By staying informed about the UV Index, you can enjoy the beautiful outdoors while ensuring your skin remains healthy and safe.
The UV Index shows a clear progression throughout the day, peaking at 12:00 PM with a value of 7, indicating a high level of ultraviolet radiation. As the sun rises, it begins with a modest 2 at 07:00 AM, gradually climbing to a 5 by 10:00 AM and reaching its apex by noon. The intensity slightly declines after that, dropping to 6 at 2:00 PM, before tapering off to 1 by 6:00 PM. It's essential to plan your day accordingly, especially during the midday hours when sun protection is crucial.
| 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 | 7 | high | 25 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, UV Index levels exhibit notable fluctuations, marking a clear seasonal trend. From January to February, the UV Index remains low (1-2), with a generous burn time of 45 minutes, allowing for safe outdoor activities. However, as spring approaches in March and April, the UV Index rises to moderate levels (4-5), reducing burn time to 30 minutes. The risk intensifies during the summer months of May through August, where UV Index values peak at 6-7 and burn time shrinks to 25 minutes, indicating high-risk conditions for prolonged sun exposure. The transition back to lower levels occurs in September and October, where the UV Index falls to moderate (3-5) with burn times returning to 30 minutes. By November and December, the UV Index dips back to low levels (1), providing a safe burn time of 45 minutes once again. Visitors and residents are advised to take necessary precautions, especially during the high-risk months of May through August, by utilizing sunscreen, wearing protective clothing, and seeking shade 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 |
| Sergiyev Posad | 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 |