Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Entronque (Ley Seis de Enero), Mexico, where the potent sun can pose significant risks to skin health. With peak UV levels soaring to 13 during the midday hours, awareness of these fluctuations is essential for effective sunburn prevention and long-term skin protection. This region's BSk climate, characterized by dry and sunny conditions, means that sun exposure is a daily reality, making it vital for locals and visitors alike to stay informed about UV risks to safeguard their well-being. By checking the UV Index regularly, you can enjoy the sunny days while keeping your skin healthy and protected.
The UV Index shows a dramatic rise in intensity throughout the morning, starting from a mild 1 at 07:00. By 09:00, the index reaches 4, indicating a moderate level of sun exposure risk. The peak UV radiation occurs at 13:00, soaring to a concerning 13, suggesting that sun protection is essential during this hour. As the afternoon progresses, the index gradually declines, dipping to 10 by 15:00 and falling to 1 by 19:00. For outdoor enthusiasts, it’s crucial to seek shade and apply sunscreen during peak hours between 11:00 and 14:00 to ensure safety under the sun.
| 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 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV levels fluctuate significantly, with the highest risks occurring from April to September. During these months, the UV Index consistently reaches extreme levels, peaking at 13 in May and June. In these high-risk months, burn time decreases dramatically to as little as 10 minutes, necessitating vigilant sun protection. February and March also present very high UV levels (8 and 10, respectively), with a burn time of just 15 minutes. In contrast, the lowest UV exposure can be found in January, November, and December, with moderate to high levels that provide burn times of up to 30 minutes. Residents and visitors should ensure they wear appropriate sunscreen, protective clothing, and seek shade during peak hours, especially from April to September, to safeguard against harmful UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Entronque (Ley Seis de Enero) | 5 | 8 | 10 | 12 | 13 | 13 | 13 | 12 | 11 | 9 | 6 | 5 |
| 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 |