Last updated: July 2, 2025
Understanding the UV Index is essential for safeguarding your skin's health in Llano Silleta, Mexico. With high UV levels peaking at 14 during midday, awareness is crucial to prevent sunburn and reduce long-term skin damage. The region’s warm climate pairs with intense sun exposure, making it vital for residents and visitors to monitor UV levels throughout the day. By being informed, you can enjoy the vibrant outdoor lifestyle of Llano Silleta while protecting yourself from harmful rays. Stay safe and make informed decisions to enjoy the sun responsibly!
The UV Index rises dramatically as the day unfolds, starting from a calm 0 at 7:00 AM. By 8:00 AM, it gently increases to 1, signaling a mild sun presence. As the clock strikes 9:00 AM, it nudges to 2, but things heat up quickly from there. At 10:00 AM, the index jumps to 5, then surges to a formidable 9 by 11:00 AM. The peak arrives at 12:00 PM with a blistering 12, but it doesn't stop there! 1:00 PM and 2:00 PM witness the highest levels, both hitting 14, making it crucial to seek shade or lather on sunscreen. The afternoon sees a gradual decline, with the index easing to 12 at 3:00 PM, then 9 at 4:00 PM, and tapering off to 5 by 5:00 PM. As the sun starts to set, it cools down to 2 at 6:00 PM, and eventually settles at 1 by 7:00 PM, marking the end of a sun-drenched day. Stay mindful of those midday rays!
| 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 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The seasonal UV changes show significant fluctuations throughout the year, with the highest risk months occurring from February to October, where the UV Index reaches extreme levels, particularly peaking in April and May at 15. During these months, the safe exposure time is reduced to just 10 minutes, highlighting the importance of taking precautions. Visitors and residents are strongly advised to avoid prolonged sun exposure during these months, especially between midday hours, and to consistently apply broad-spectrum sunscreen, wear protective clothing, and seek shade whenever possible. As the year progresses into November and December, the UV Index decreases to levels classified as very high, allowing for slightly longer exposure times of 15 minutes, but caution remains essential year-round.
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 |
| 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 |
| Llano Silleta | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 12 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |