Last updated: July 2, 2025
In Los Martires Uno, Mexico, staying informed about the UV Index is crucial for maintaining skin health and preventing sunburn. As a region characterized by a hot desert climate (BWh), residents and visitors alike face significant UV exposure, especially during peak hours when the index can soar as high as 12. Understanding UV levels helps individuals take necessary precautions and enjoy the sun safely, ensuring that their outdoor activities remain enjoyable and risk-free. Take note of the UV Index, especially between 11 AM and 2 PM, when the sun's rays are at their most intense!
The UV Index today exhibits a distinct rise as the day progresses, peaking at a striking 12 between 1 PM and 2 PM, indicating a high risk of harm from unprotected sun exposure. Early morning hours, from 7 AM to 9 AM, show low levels of UV radiation, with indices at 1 and 3 respectively. As the clock ticks toward noon, values surge significantly, climbing to 8 at 11 AM and skyrocketing to 11 by noon. The intensity starts to wane after 2 PM, gradually falling to 5 by 5 PM, before settling back to 1 by 7 PM. To protect your skin during peak exposure times, remember to seek shade, wear protective clothing, and apply sunscreen!
| 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 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 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 |
Throughout the year, UV exposure varies significantly, with high-risk months typically spanning from February to September, when the UV Index reaches very high and extreme levels. Particularly alarming is April to September, where the UV Index consistently registers at 12, indicating extreme risk with a minimal recommended burn time of just 10 minutes. In contrast, January and November present a high exposure risk with burn times of 25 minutes, while December sees a moderate risk with a more manageable 30 minutes. Consequently, it is essential for both visitors and residents to take precautions during peak UV months by wearing protective clothing, applying broad-spectrum sunscreen, and limiting time outdoors, especially during midday hours when UV rays are most potent.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Los Martires Uno | 6 | 8 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 9 | 7 | 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 |