Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Estelle, United States, where the climate can expose you to heightened UV levels, especially during peak hours. With a climate classified as Cfa, the region experiences intense sunlight, making it essential to monitor UV levels daily. By grasping the significance of the UV Index, you empower yourself to safeguard against sunburn and long-term skin damage. During the peak UV hours, especially between 10 AM to 2 PM, when the index can soar to 12, taking proper precautions becomes vital for maintaining skin health and enjoying the outdoors safely. Stay informed and protect your skin from the sun's harmful rays!
The UV Index throughout the day showcases a significant rise and fall, reflecting evolving sun exposure. At 7:00 AM, the index is a modest 1, allowing for a gentle start to the day. As the sun climbs higher, by 10:00 AM, it escalates to 6, indicating a notable increase in UV intensity. The peak of the day occurs at 1:00 PM, where the index reaches a striking 12, urging everyone to seek shade and don protective gear. As the afternoon progresses, the UV levels begin to decline, dropping to 8 by 3:00 PM, and further diminishing to 1 by 7:00 PM. This data clearly highlights the essential precautions needed during midday hours to protect against the sun’s rays.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes indicate significant fluctuations in sun exposure risk. From January to March, the UV Index rises from moderate (5) to very high (9), with burn times decreasing from 30 to 15 minutes. The high-risk months are April through August, where the UV Index peaks at an extreme level of 12, allowing for a burn time of only 10 minutes. As the year progresses, UV levels gradually decrease, with a return to very high levels in September and October before dropping to a high category in November and moderate levels again in December. Visitors and residents are advised to take precautions during peak months by using sunscreen, wearing protective clothing, and seeking shade, especially between 11 AM and 4 PM when UV rays are the strongest.
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 |
| Estelle | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 12 | 10 | 9 | 6 | 5 |