Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Saint Clair, United States, as it serves as a vital tool for sun safety and skin health awareness. With the region experiencing a Dfb climate, locals face varying UV levels throughout the day, peaking at an impressive 9 between 1:00 PM and 2:00 PM. Awareness of these levels is essential not only for preventing painful sunburns but also for reducing long-term skin damage and the risk of skin cancer. Stay informed and protect yourself by checking the UV Index regularly to enjoy the sunny days in Saint Clair safely!
As the sun rises, the UV Index begins at a low 1 at 07:00, providing a gentle start to the day. By 09:00, it picks up to 3, signaling the need for a bit more awareness. The real warmth comes at 10:00, with the index reaching 5, and it escalates quickly as noon approaches. By 12:00, we hit 8, and at 13:00, the UV index peaks at 9, marking the height of solar intensity. As the afternoon progresses, values remain high but start to dip slightly: 8 at 15:00 and then down to 6 by 16:00. As the sun begins to set, the index falls to 4 at 17:00 and finally drops back to 1 by evening, reminding us to bask in the sun wisely and protect our skin during peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index shows significant seasonal variations that influence sun exposure risks for both visitors and residents. From January to March, the index starts low at 2 but rises to 5 by March, indicating moderate exposure risks with burn times decreasing from 45 minutes to 30 minutes. The spring and summer months, particularly April to August, present the highest risks, with UV Index values soaring to 9 and 10 during the peak months of May and June. Here, the burn time drops dramatically to just 15 minutes, categorizing these months as very high risk. September sees a slight decrease to 7 (high exposure) while October and November return to moderate levels with indices of 5 and 4. As winter arrives in December, the UV Index falls to 2, marking a return to low exposure risks. It's crucial for everyone to be aware of these fluctuations: during high-risk months, especially from April to August, it is advisable to limit sun exposure, wear protective clothing, and apply sunscreen regularly to prevent skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Saint Clair | 2 | 4 | 5 | 8 | 9 | 10 | 9 | 9 | 7 | 5 | 4 | 2 |
| Chicago UVI | 3 | 4 | 6 | 8 | 9 | 10 | 10 | 9 | 8 | 6 | 4 | 2 |
| Brooklyn UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
| New York City UVI | 3 | 5 | 6 | 8 | 10 | 10 | 9 | 9 | 8 | 6 | 4 | 2 |
| Los Angeles UVI | 4 | 6 | 8 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Houston UVI | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 7 | 5 |