Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Rancho Viejo, Mexico, a region known for its sunny skies and warm climate. As the UV levels can soar to a dangerous 13 during midday, being aware of these fluctuations is essential for preventing sunburn and safeguarding skin health. High UV exposure not only increases the risk of immediate discomfort but can also lead to long-term skin damage. With Rancho Viejo's climate, characterized by intense sun exposure, it's vital to stay informed about the UV Index to enjoy the outdoors safely and protect your skin from harmful effects.
The UV index for the day presents a fascinating fluctuation, starting from 0 at 07:00, where sun lovers can bask in the early morning's protective embrace. As the clock strikes 08:00, the index edges up to 1, signaling the gentle awakening of solar intensity. By 09:00, it reaches 2, a mild reminder to enjoy the shade. The sun's strength surges to 4 at 10:00, suggesting it's time for some sunscreen. The peak hits a blistering 11 at noon, followed closely by a 13 at 13:00, emphasizing the need for serious sun protection during these hours. As the day progresses, the index gracefully declines: 11 at 15:00, 8 at 16:00, 5 at 17:00, and finally, it settles back to 3 by 18:00, fading away to 1 by 19:00. This compelling UVI journey invites us to embrace the sun's brilliance while safeguarding our skin.
| 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 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 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 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
The UV Index varies significantly throughout the year, with the most high-risk months occurring from February to September, when the index consistently reaches extreme levels of 11 to 14. During these months, the recommended burn time is critically low, at only 10 minutes of unprotected exposure. Notably, March, April, May, and September are the peak months, all maintaining an index of 14. As such, residents and visitors are strongly advised to take precautionary measures, including wearing broad-spectrum sunscreen, protective clothing, and sunglasses, especially during midday when the sun's rays are most intense. In contrast, January, November, and December have a lower UV Index (9 or 8) and slightly longer burn times of 15 minutes, but it's still essential to stay vigilant and protect your skin year-round.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rancho Viejo | 9 | 11 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 11 | 9 | 8 |
| 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 |