Last updated: May 3, 2025
Awareness of the UV Index is crucial for residents and visitors of Colonia San Luis, Mexico, especially given its warm Aw climate, which often results in high levels of UV exposure. Understanding UV levels is essential for preventing sunburn and promoting long-term skin health. With midday UV Index values reaching a peak of 14, it’s important to take proactive measures during peak hours to guard against harmful effects. Whether you're enjoying outdoor activities or simply soaking up the sun, being informed about UV levels can help you stay safe and enjoy all that Colonia San Luis has to offer.
As the day unfolds, the UV Index rises dramatically, peaking at an intense 14 between 1 PM and 2 PM. Starting from a mild 1 in the early morning at 7 AM, sun exposure becomes more significant as the hours pass. By 10 AM, the index escalates to 6, and by 11 AM, it reaches 9, signaling the need for sun protection. At noon, the UV Index hits a scorching 12, a reminder that outdoor adventures should be approached with caution. Following the zenith at 1 PM, the levels gradually decline, falling to 7 by 4 PM and settling at a low 1 again by 7 PM. Stay safe and be sun smart during these peak hours!
| 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 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As seasonal UV levels fluctuate throughout the year, visitors and residents must pay close attention to the high-risk months from February to October, when the UV Index consistently reaches extreme levels of 12 or higher. In these months, the burn time is dramatically reduced to just 10 minutes, making it crucial to take precautions. January, November, and December exhibit very high UV levels, allowing for slightly longer exposure times of 15 minutes, but caution is still advised. To protect yourself from potential skin damage, it's essential to apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak sunlight hours, especially in the spring and summer months when the UV Index peaks at 14 in May and July. Stay informed and safe to enjoy the outdoors responsibly.
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 |
| Colonia San Luis | 10 | 12 | 13 | 13 | 14 | 13 | 14 | 13 | 13 | 12 | 10 | 9 |
| 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 |