Last updated: August 1, 2025
Understanding the UV Index is vital for residents and visitors in Chalchihuites, Mexico, where the sun's rays can be intense due to its arid climate. With UV levels peaking between 11:00 AM and 3:00 PM—reaching a staggering 14—awareness of these measurements is key to protecting your skin and preventing painful sunburns. Staying informed about UV levels not only promotes skin health and guards against long-term damage, but also ensures that your outdoor adventures in this beautiful region are both enjoyable and safe. Embrace the sun responsibly by keeping an eye on the UV Index during your time in Chalchihuites!
As the sun rises, the UV Index begins to peak at 08:00 with a mild level of 1, slowly climbing through the morning. By 10:00, it has reached 4, signaling the start of a more intense exposure. The 11:00 mark brings a notable jump to 8, but it isn't until 12:00 that the UV Index hits a striking 11—a reminder to protect your skin! The maximum intensity occurs at 14:00, with the Index soaring to 14, making this the most dangerous time for sun exposure. Fortunately, as the afternoon progresses, values start to decline, dropping to 10 by 16:00 and easing further to 4 by 18:00. As evening approaches, the UV Index returns to a modest level of 2 by 19:00, signaling a safer time to enjoy outdoor activities. Stay safe and consider the UV Index throughout the day!
| 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 | 14 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 10 | very high | 15 min |
| 17:00 | 7 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
The UV Index in the region shows significant seasonal variation, with the highest values occurring from February to October, where exposure is categorized as extreme for the majority of this period. March and April register the peak UV Index at 13 and 15, respectively, resulting in a burn time of only 10 minutes, emphasizing the need for caution. High-risk months include February through October, when residents and visitors should prioritize sun safety measures. During January, November, and December, while still presenting a very high UV Index of 8 or 9, the burn time increases to 15 minutes, allowing for slightly more leniency. To protect against skin damage, it is crucial to wear sunscreen, seek shade, and wear protective clothing, especially during the peak hours of sunlight throughout the high-risk months.
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 |
| Chalchihuites | 8 | 11 | 13 | 15 | 15 | 14 | 14 | 14 | 14 | 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 |