Last updated: August 1, 2025
Understanding the UV Index in San Francisco de Lajas, Mexico, is vital for protecting your skin and overall health. With its Csa climate, this region experiences significant UV exposure, especially during peak hours, making it crucial to be aware of UV levels to prevent sunburn and long-term skin damage. During the hottest part of the day, from 12 PM to 2 PM, UV Index values can soar to 13, signaling a high risk of harm from unprotected sun exposure. By staying informed about the UV Index, residents and visitors alike can take proactive steps to enjoy the sun safely while keeping their skin healthy.
The UV Index for today showcases a dramatic increase in solar intensity as the day progresses. Starting at a meager 0 at 07:00, it gradually climbs to 1 by 08:00, hinting at the sun's potential. A significant jump occurs at 10:00, reaching 4, but the real peak arrives during midday, with the UV Index soaring to an intense 13 at both 13:00 and 14:00. As the afternoon winds down, the index begins to taper off, standing at 10 by 16:00 and eventually descending to 2 by 19:00. It's a perfect reminder that while the sun can be inviting, peak hours demand extra caution—stay protected during those high UV times!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 1 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 10 | very high | 15 min |
| 17:00 | 7 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
The UV Index varies significantly throughout the year, with its peak occurring from March to October, where values reach 12 to 14 and are classified as extreme. During these months, the burn time is notably short at just 10 minutes, indicating a high risk of skin damage. February to April show particularly elevated risks, with February peaking at 11. Conversely, the winter months of November and December present a reduction in UV exposure, with indices dropping to 9 and 7, allowing for slightly longer burn times of 15 and 25 minutes respectively. Visitors and residents should remain vigilant, especially from March through October, using sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize UV-related health risks.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Francisco de Lajas | 8 | 11 | 12 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 9 | 7 |
| 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 |