Last updated: May 3, 2025
In San Francisco de las Mesillas, Mexico, awareness of the UV Index is crucial for maintaining healthy skin and preventing sunburns, especially under the region's sunny Am climate. Understanding UV levels empowers residents and visitors to make informed decisions about sun protection, especially during peak hours when the index soars to a staggering 14 around midday. With a typical pattern showing significantly elevated UV exposure from 10:00 AM to 2:00 PM, it's essential to take proactive measures against the harmful effects of ultraviolet radiation. Embrace the sun safely while enjoying all that this vibrant town has to offer!
The UV Index throughout the day paints a vivid picture of sun intensity, peaking dramatically around noon. Starting at a modest 1 at 7:00 AM, the index gently climbs to 3 by 9:00 AM, before hitting a striking 6 at 10:00 AM. As the sun rises higher, the UV Index reaches its zenith at 12:00 PM with a blistering score of 12, and then surges to a peak of 14 by 1:00 PM. The intensity begins to wane in the afternoon, dropping to 11 at 3:00 PM and further declining to 4 by 5:00 PM. As evening approaches, a safe 2 is reached by 6:00 PM, and the day ends with a gentle 1 by 7:00 PM. It’s a clear reminder to stay protected during the peak hours when the sun’s rays are at their strongest!
| 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 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | 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 |
Seasonal UV changes indicate that the highest levels of UV exposure occur from February to October, with a peak UV Index of 14 in both June and July, where the burn time is only 10 minutes. The months of March through October are categorized as extreme, posing significant risks for sunburn and skin damage. January, November, and December feature lower UV levels, with burn times extending to 15 minutes but still classified as very high. Visitors and residents should take precautions during the high-risk months, including wearing sunscreen, protective clothing, and seeking shade, particularly during midday hours when the sun's intensity is greatest. Prioritizing skin protection is essential to prevent harmful effects from overexposure to UV radiation.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Francisco de las Mesillas | 9 | 11 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 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 |