Last updated: June 2, 2025
Understanding the UV Index is essential for residents and visitors of Ojo Zarco, Mexico, where the combination of its BSh climate and high altitude can significantly elevate UV exposure risks. A clear awareness of UV levels is crucial for effective sunburn prevention and maintaining skin health, particularly when midday readings can reach a maximum of 14—indicating extreme risk. As Ojo Zarco enjoys bright, sunny days, being informed about the UV Index helps ensure you can enjoy the outdoors safely while protecting your skin from harmful effects.
The UV Index throughout the day exhibits a dynamic rise and fall, beginning with a maximum of 0 at 7:00 AM. As the sun ascends, the index steadily climbs, reaching 1 by 8:00 AM and hitting 2 at 9:00 AM. The real surge occurs between 10:00 AM and 1:00 PM, where it peaks at an intense 14 at 1:00 PM, indicating the highest potential for skin damage. The index slightly dips to 12 by 3:00 PM but remains significant as the afternoon progresses. By 6:00 PM, it drops to 3, and by 7:00 PM, it's back to a manageable 1. For outdoor enthusiasts, the most crucial hours to seek shade or wear protection are clearly from 10 AM to 2 PM when the sun’s rays are most potent.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | 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 | 11 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 12 | extreme | 10 min |
16:00 | 10 | very high | 15 min |
17:00 | 6 | high | 25 min |
18:00 | 3 | moderate | 30 min |
19:00 | 1 | low | 45 min |
The UV Index demonstrates significant seasonal changes, peaking during the late spring and summer months. From January to March, the index starts high but quickly escalates, reaching its maximum of 15 in both April and May. The months of February to October pose the highest risk, with an extreme exposure category, where the burn time is notably short at 10 minutes. Visitors and residents should be particularly vigilant during these high-risk months, especially from February to October, and adopt protective measures such as wearing sunscreen, hats, and protective clothing. As we approach the fall and winter months, the UV risk decreases but remains notably high in November and December. It is essential to stay informed and protect your skin year-round.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Guadalajara UVI | 9 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 9 | 8 |
Ojo Zarco | 9 | 11 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 12 | 10 | 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 |