Last updated: July 2, 2025
Understanding the UV Index is crucial for anyone spending time in La Ventana, Mexico, where the sun shines brightly year-round. Being aware of UV levels can significantly help in preventing sunburn, promoting skin health, and reducing the risk of long-term damage. With a Cwb climate, La Ventana experiences intense midday sun, peaking at a UV Index of 15 around 1 PM, making it essential to stay informed and take protective measures during those hours. Whether you're lounging on the beach or exploring the stunning landscapes, knowing the UV Index will keep your skin safe and your outdoor experiences enjoyable.
As the day unfolds, the UV Index climbs steadily, peaking at 15 between 1:00 PM and 2:00 PM, indicating a very high risk of harm from unprotected sun exposure. Early in the morning, from 7:00 AM to 9:00 AM, the index remains low, only reaching a maximum of 3 by 9:00 AM. However, by 10:00 AM, it skyrockets to 7, setting the stage for the impending intensity. The UV levels reach their highest at 12:00 PM with a staggering 13 before slightly tapering off in the afternoon. As the sun begins its descent, the index drops to 8 by 4:00 PM, then falls further to 4 at 5:00 PM. By evening, it is safe once more, dwindling to 2 at 6:00 PM and finally returning to a comfortable 1 by 7:00 PM. Be sure to embrace sun safety during those peak hours!
| 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 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure levels vary significantly, with the highest risks occurring from February to October. During these months, the UV Index frequently reaches extreme levels, peaking at 15 in April through July, meaning that a burn can occur in just 10 minutes. It is crucial for visitors and residents to take precautions during these high-risk months, such as seeking shade, wearing protective clothing, and applying sunscreen liberally. Notably, January and November see a slightly lower UV Index of 10, categorized as very high, resulting in a burn time of 15 minutes. The least intense UV levels occur in December with an index of 9, but vigilance is still advised. Overall, awareness and proactive sun protection are essential to prevent harmful effects from UV radiation 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 |
| 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 |
| La Ventana | 10 | 13 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |