Last updated: May 3, 2025
Understanding the UV Index in San Bartolome Quialana, Mexico, is crucial for protecting your skin and overall health. With the region’s Cwb climate, residents and visitors alike face significant UV exposure risks, especially during peak hours when the Index reaches its highest levels—up to 15 at noon. Awareness of UV levels is vital not only for preventing painful sunburns but also for promoting long-term skin health. By staying informed about the UV Index, you can take proactive steps to enjoy the sun safely while minimizing potential harm.
The UV Index throughout the day showcases a dynamic shift in sun intensity. Starting gently at 1 during the early hours, it quickly climbs to 3 by 09:00. As the sun reaches its peak, the index escalates dramatically to a striking 14 by 12:00, signaling a high risk of harm from unprotected sun exposure. The apex arrives at 15 between 13:00 and 14:00, urging caution for anyone outdoors. Gradually, as the afternoon fades, the index dips to 12 at 15:00, then further descends to 2 by 18:00, finally settling back at 1 by 19:00. It’s a vivid reminder of the day's sun's power, with the highest risks occurring in the early afternoon. Stay protected and enjoy the sun safely!
| 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 | 6 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 12 | 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 |
The UV Index exhibits a notable seasonal pattern, peaking during the warmer months from March to October, where values consistently remain in the extreme category (UV Index 14-15). The highest UV levels are recorded in April, May, June, and July, maintaining an extreme classification and a very short burn time of just 10 minutes. In contrast, January and December experience very high UV levels but with slightly longer burn times of 15 minutes. Based on this data, the high-risk months for UV exposure are clearly March through November, especially from April to August. Visitors and residents are advised to take precautionary measures during these months—such as wearing sunscreen, protective clothing, and seeking shade during peak hours—to minimize the risk of sunburn and long-term skin damage.
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 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |
| San Bartolome Quialana | 10 | 13 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 11 | 9 |