Last updated: June 2, 2025
In Santander Jimenez, Mexico, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn, particularly given the region's BSh climate that exposes residents to intense sunlight. Understanding UV levels not only helps you protect your skin from harmful rays but also informs your outdoor activities throughout the day. With UV Index readings peaking at a remarkable 12 around midday, it's important to take precautions, such as wearing sunscreen and protective clothing, especially during the 10:00 AM to 4:00 PM window when the sun's rays are at their strongest. Stay informed and safe to enjoy the sunny days Santander Jimenez has to offer!
As the sun rises, the UV Index begins its gentle ascent, peaking at 1 around 7:00 AM and remaining low until 9:00 AM, when it jumps to 3. By 10:00 AM, the intensity escalates to 5, signaling that it’s time to take precautions. The sun reaches its zenith at 12:00 PM, with a scorching 11, followed closely by a peak of 12 at 1:00 PM and 2:00 PM. As the afternoon wears on, the index starts to decline, dipping to 10 by 3:00 PM, and continuing to decrease to 5 at 5:00 PM. As twilight approaches, the UV threat diminishes, settling back to 1 by 7:00 PM. Stay sun-safe during the peak hours of 11:00 AM to 2:00 PM, when the UV levels are their most dangerous!
| 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 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV exposure varies significantly, with the highest risk occurring from March to September when the UV Index consistently remains in the extreme category (11-12). During these months, the burn time is notably short, at just 10 minutes, meaning that protective measures are crucial. February also marks a high-risk month with a very high UV Index of 9 and a burn time of 15 minutes. As the seasons change, UV exposure decreases, with October and November presenting very high conditions (8-10) but longer burn times of 15 minutes. By December and January, the UV Index falls to 6-7 and the burn time increases to 25 minutes. Visitors and residents should take precautions, such as wearing sunscreen and protective clothing, especially during the high-risk months to prevent harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santander Jimenez | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 10 | 8 | 6 |
| 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 |