Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Los Reyes (Las Chiveras), Mexico, where the sun shines brightly and consistently throughout the year. With UV levels peaking as high as 12 during midday, awareness can be the key to preventing sunburn and safeguarding your skin health. Elevated UV exposure in this climate zone not only increases the risk of immediate damage like sunburn but also poses long-term threats such as skin cancer. Staying informed about daily UV levels can help you enjoy the sun safely while taking necessary precautions to protect yourself and your loved ones.
The UV Index throughout the day presents an intriguing picture of sun exposure. Starting with a low of 0 at 7:00 AM, the index slowly climbs to 1 by 8:00 AM. As the sun ascends, 9:00 AM witnesses a rise to 2, followed by a leap to 4 at 10:00 AM. The intensity peaks impressively, reaching 10 at noon and hitting a maximum of 12 between 1:00 PM and 2:00 PM. As the afternoon unfolds, the index gradually declines: from 11 at 3:00 PM to 5 by 5:00 PM, and tapering off to 1 by 7:00 PM. This data highlights a striking reminder of the sun's potency during midday hours, urging outdoor enthusiasts to take precautions in peak UV times.
| 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 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal fluctuations, peaking in the late spring and summer months. From January to April, the UV Index rises sharply, reaching its maximum of 14 in June. The months of February to October are classified as high-risk, with burn times as short as 10 minutes during periods of extreme exposure. Visitors and residents should take precautions by wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours, especially from February through September. As the year transitions into the cooler months of November and December, the UV Index drops to 9 and 8, respectively, indicating a decreased, yet still considerable, risk. It's essential to remain vigilant about UV protection year-round to minimize skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Los Reyes (Las Chiveras) | 9 | 11 | 13 | 13 | 13 | 14 | 13 | 12 | 13 | 11 | 9 | 8 |
| 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 |