Last updated: May 3, 2025
Understanding the UV Index is essential for residents of San Ygnacio, United States, where the subtropical climate leads to significant UV exposure risks. With peak UV levels reaching a high of 12 around midday, awareness of these readings is crucial for preventing sunburn and maintaining overall skin health. By keeping an eye on the UV Index, you can make informed decisions about outdoor activities, ensuring you protect your skin from harmful effects while enjoying the beautiful sunny days typical in this region. Stay safe and informed!
The UVI data reveals a clear pattern of increasing sun intensity throughout the morning and into the afternoon. Starting at a mild 1 at 07:00 and 08:00, the UV Index gradually rises to level 2 by 09:00. A rapid surge occurs, peaking at an intense 12 between 13:00 and 14:00, perfect for sunbathers seeking rays. However, this level of exposure requires caution, as the UVI begins to decline in the late afternoon, dropping to 5 by 17:00 and settling back to 1 by 19:00. To stay safe while enjoying the sun, it’s best to seek shade or wear protection during the peak hours from 11:00 to 15:00.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, so do UV levels, significantly impacting skin safety for both visitors and residents. From January to March, the UV Index rises from 6 to 10, indicating high to very high exposure risk, with burn times decreasing from 25 minutes to just 15 minutes. April through August marks the peak months for UV intensity, consistently at 12, categorized as extreme, where even short exposures of 10 minutes can lead to sunburn. In September, UV levels remain high at 11 before tapering off through October with a 9, and finally decreasing to 5 in December, classified as moderate. For optimal sun safety, it is crucial for individuals to plan outdoor activities accordingly, particularly during the spring and summer months, ensuring protective measures such as sunscreen, clothing, and shade are utilized.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| San Ygnacio | 6 | 8 | 10 | 11 | 12 | 12 | 12 | 12 | 11 | 9 | 7 | 5 |