Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Loretito (Charco del Toro), where the warm BSh climate can expose individuals to varying levels of ultraviolet radiation throughout the day. With UV levels peaking at a striking 14 between noon and 2 PM, it's essential to grasp how these numbers can impact skin health and contribute to sunburn if precautions aren't taken. By being aware of the UV Index, you can protect yourself and enjoy the stunning outdoor beauty that Loretito has to offer, making sun safety an essential part of your daily routine.
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 |
| Loretito (Charco del Toro) | 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 |