Last updated: August 1, 2025
In Chun-Yah, Mexico, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding UV levels not only helps prevent painful sunburns but also plays a significant role in reducing long-term skin damage and the risk of skin cancer. With a climate that often brings high UV exposure, especially between 10 AM and 2 PM when the index can reach as high as 12, residents and visitors must be vigilant. By monitoring the UV Index, you can take proactive steps to enjoy the beautiful sun while keeping your skin safe and healthy.
The UV Index undergoes a notable progression throughout the day, beginning at a gentle 1 at 07:00, before gradually rising to a moderate 2 by 08:00. As the sun ascends, the index climbs sharply, peaking at a dizzying 13 around 13:00—a clear indication that sun protection is essential during these hours. From this pinnacle, the UV Index begins its descent, tapering off to a 9 at 15:00 and finally dwindling to 1 by the evening hours of 18:00 and 19:00. With this data in mind, it's crucial to enjoy the outdoors safely, particularly between 11:00 and 14:00, when the sun's rays are at their most intense.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 3 | 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 | 9 | 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 shows significant seasonal variation, with high-risk months occurring from March through October where extreme levels dominate, peaking at 14 in June. Visitors and residents should be particularly cautious during these months, where the burn time is as low as 10 minutes under strong sun conditions. In contrast, the UV Index is lower in the winter months, dropping to 8 in January and decreasing to 7 in December, with slightly longer burn times of 15 to 25 minutes. To protect against harmful UV exposure, it is advisable to wear protective clothing, seek shade, and apply broad-spectrum sunscreen regularly, especially from late morning to mid-afternoon during peak UV times.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chun-Yah | 8 | 10 | 13 | 13 | 13 | 14 | 13 | 12 | 12 | 11 | 9 | 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 |