Last updated: July 2, 2025
In Siniyuvi, Mexico, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding the varying UV levels throughout the day helps residents and visitors alike to prevent sunburn and reduce long-term skin damage. With a tropical climate that often sees high UV exposure, particularly during midday when the index peaks at a staggering 13, it’s essential to stay informed and take appropriate precautions. Enjoying the sun safely means being mindful of when to seek shade, wear protective clothing, and apply sunscreen. Stay vigilant and embrace the beautiful sunshine without compromising your skin health!
As the sun rises, the UV Index begins its ascent, starting at a gentle 0 at 7:00 AM. By 8:00 AM, it gains momentum, reaching 1, and continues to climb steadily. The intensity peaks dramatically at 12:00 PM, hitting a blistering 11, with the highest point recorded at 1:00 PM, marked at 13. This level signals a critical time for sun protection, as it remains at 13 until 2:00 PM. The afternoon sees a gradual decline, with the UV Index tapering off to 11 at 3:00 PM, before further dropping to 8 by 4:00 PM. By evening, the intensity diminishes significantly, settling to 2 at 6:00 PM and finally returning to a safe 1 by 7:00 PM. It's a vivid reminder of how crucial it is to stay vigilant about sun safety during the peak hours of 11:00 AM to 2:00 PM!
| 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 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | 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 |
Seasonal variations in UV exposure highlight significant changes throughout the year, particularly from January to October, when the UV Index reaches its peak. The highest risk months are March to June, characterized as extreme with a UV Index of 13 to 14 and a burn time of just 10 minutes. As visitors and residents engage in outdoor activities during these months, it is crucial to take protective measures, such as applying sunscreen, wearing protective clothing, and seeking shade during midday hours. Conversely, November and December see a drop in the UV Index to 9 and 8, respectively, reflecting a transition back to a very high exposure category; however, vigilance remains important as burn times extend to 15 minutes. This seasonal UV landscape serves as a reminder to stay informed and proactively protect skin health throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Guadalajara UVI | 9 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 9 | 8 |
| Siniyuvi | 10 | 12 | 13 | 14 | 14 | 14 | 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 |