Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents of Rostov-na-Donu, as it serves as a vital tool in safeguarding skin health and preventing sunburn. With the city’s Dfa climate, characterized by hot summers, awareness of UV levels can help you navigate daily sun exposure risks. For instance, during peak hours, the UV Index can reach as high as 9, indicating a significant risk of harm from unprotected sun exposure. Staying informed about these fluctuating levels not only empowers you to enjoy the sun safely but also plays a key role in long-term skin health.
Today’s UV Index paints a vivid picture of sun intensity throughout the day. Starting with a gentle rise, the index begins at 2 at 07:00, moving to 3 by 08:00. As the sun climbs higher, it peaks at a striking 9 at noon, the most critical time for sun exposure. By early afternoon, it remains strong at 8 and 7 before gradually tapering off as the day wanes. As evening approaches, the values drop to 4 at 16:00, finishing the day with a low 1 by 19:00. Make sure to seek shade during peak hours, as the intensity of UV rays can be quite formidable!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 7 | high | 25 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV Index can significantly impact sun safety measures for visitors and residents. Generally, high-risk months include May through August, when the UV Index peaks at 8 or 9, classified as very high, with a burn time as short as 15 minutes. During this period, it is crucial to take precautions such as wearing sunscreen, protective clothing, and seeking shade. Conversely, the UV Index is low to moderate from January to April and from September to December, with safer exposure levels and longer burn times. January and December present the lowest risk, but it is still advisable to remain vigilant regarding sun exposure during all months, particularly in transitional periods like March and September when UV levels can rise unexpectedly.
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 |
| Rostov-na-Donu | 2 | 3 | 5 | 7 | 8 | 8 | 9 | 8 | 6 | 4 | 3 | 2 |