Last updated: July 2, 2025
In Colonia Veinte de Noviembre (El Veinte), Mexico, awareness of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding UV levels is essential not just for preventing painful sunburns, but also for maintaining long-term skin health. With a climate characterized by intense sunshine, especially during midday hours, El Veinte sees UV Index values peak at a striking 13 from noon until mid-afternoon, highlighting the need for vigilance. By staying informed about these levels, residents and visitors can take proactive steps to enjoy the sun safely while minimizing their risk of skin damage.
The UV Index throughout the day paints a vivid picture of sun intensity. Starting from a cool morning, the index rises gradually from 0 at 07:00 to 1 at 08:00, signifying low sun exposure. By 10:00, it spikes to 4, prompting cautious sunbathers to slather on sunscreen. The real peak hits at 12:00 with an intense 10, indicating it's time to seek shade, and from 13:00 to 14:00, the UV Index reaches its zenith at 13. As the afternoon wanes, it begins to dip, landing at 9 by 16:00 and gradually retreating to 5 at 17:00, before settling back down to 3 at 18:00 and 1 by 19:00. This data highlights a stark reminder of the sun’s power during midday hours, where precautions are essential for safe outdoor activities.
| 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 | 10 | very high | 15 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | 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 experiences significant variation throughout the year, with the highest levels occurring from February to October, where it reaches an extreme peak of 14 in April and June. High-risk months include February, March, April, and June, all categorized as extreme, with dangerously short burn times of just 10 minutes. In contrast, January and November have a very high index of 9, allowing approximately 15 minutes before burning. The UV levels start to drop in October, remaining extreme before gradually decreasing towards the end of the year. Visitors and residents are advised to take rigorous sun protection measures during the high-risk months, including wearing sunscreen, protective clothing, and seeking shade, especially during midday hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Colonia Veinte de Noviembre (El Veinte) | 9 | 11 | 13 | 14 | 13 | 14 | 13 | 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 |