Last updated: July 2, 2025
Understanding the UV Index is essential for residents and visitors of Colonia la Loma (La loma San Isidro), Mexico, where the sun shines brightly throughout the year. With peak UV levels reaching up to 14 during midday, awareness of these numbers is critical for sunburn prevention and overall skin health. The climate in this region, categorized as Cwb, presents unique challenges, especially during the warmer months when UV exposure risks are elevated. Staying informed about UV levels can help you protect your skin and enjoy the sunny outdoors safely!
The UV Index for today reveals a dramatic escalation of solar intensity as the day progresses. Starting off gently at a mere 1 at 07:00, the index climbs to 12 by noon, peaking at 14 during the early afternoon—a cautionary reminder to seek shade and apply sunscreen. As the hours pass, the intensity gradually declines, hitting 6 by 17:00 and slipping back to 1 by 19:00. With the sun's rays reaching their zenith around midday, it's essential to protect your skin during those peak hours for a safe and enjoyable day outdoors.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Seasonal changes in UV exposure reveal significant variations, with the highest levels typically observed from February to October. During this period, the UV Index reaches its peak of 15 in April, May, and June, indicating an extreme risk of harm from unprotected sun exposure with a recommended burn time of just 10 minutes. Visitors and residents should be particularly cautious during these high-risk months—March through October—when the UV Index consistently ranges from 12 to 15. To minimize the risk of skin damage, it’s essential to wear protective clothing, apply SPF sunscreen liberally, and seek shade whenever possible, especially during midday hours. As the season transitions into November and December, the UV Index gradually decreases, allowing for slightly longer burn times of 15 minutes in these very high exposure months, but caution is still advised.
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 |
| Colonia la Loma (La loma San Isidro) | 10 | 12 | 14 | 15 | 15 | 15 | 14 | 14 | 14 | 12 | 10 | 8 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |