Last updated: August 1, 2025
In Leona Vicario, Mexico, understanding the UV Index is crucial for safeguarding your skin and overall health. With UV radiation levels reaching a peak of 12 during midday, awareness of these fluctuations can help you effectively prevent sunburn and reduce the risk of long-term skin damage. This charming town, characterized by its Aw climate, presents unique challenges when it comes to UV exposure, especially during the sun-drenched hours from late morning to early afternoon. Staying informed about UV levels enables residents and visitors to enjoy the sunny outdoors while minimizing the harmful effects of the sun.
At dawn, the UV Index starts off gently, peaking at just 1 by 7:00 AM. As the sun climbs higher, its intensity increases rapidly, reaching 4 by 9:00 AM and striking 10 by 11:00 AM—a clear warning to seek shade or slather on sunscreen. The highest reading of 12 occurs at both noon and 1:00 PM, indicating peak solar intensity. Fortunately, as afternoon approaches, the index begins to wane, dropping to 8 by 3:00 PM and further declining to below 5 by 4:00 PM. By the time 7:00 PM rolls around, the UV danger has diminished significantly, settling back to a safe 1. Stay protected during those intense midday hours!
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 | 7 | high | 25 min |
11:00 | 10 | very high | 15 min |
12:00 | 12 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 11 | extreme | 10 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 |
The UV Index demonstrates significant seasonal changes, with high-risk months identified from March to October, where the index reaches extreme levels. In these months, the UV Index peaks at 13 in April, May, and June, corresponding to a burn time of only 10 minutes. Even in January and February, the UV Index remains notably high at 8 and 10, making these months also pose risks. As fall approaches, the index begins to decline, dropping to 11 in October and further down to 8 and 7 during November and December, with longer burn times of 15 and 25 minutes respectively. For both visitors and residents, it is crucial to take precautions during the high-risk months, including applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade, especially during midday hours to reduce the risk of sunburn and long-term skin damage.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Leona Vicario | 8 | 10 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 8 | 7 |
Guadalajara UVI | 9 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 9 | 8 |
Iztapalapa UVI | 10 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 10 | 8 |
Ecatepec de Morelos UVI | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
Mexico City UVI | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |