Last updated: June 2, 2025
In San Juan Lachigalla, Mexico, understanding the UV Index is essential for safeguarding your skin and overall health. With peak UV levels reaching as high as 15 during midday hours, the risk of sunburn increases significantly, making it crucial for residents and visitors alike to stay informed. This highland climate, characterized by moderate temperatures and varied sunshine, presents unique exposure challenges. By keeping track of the UV Index, you can take proactive steps to enjoy the beautiful outdoors while minimizing the risk of skin damage and long-term health issues. Stay protected, stay informed!
The UV Index paints a vivid picture of the sun's intensity throughout the day, peaking dramatically by noon. Starting gently at 1 at 07:00, the index gradually rises, reaching 6 by 10:00. As the clock strikes 11:00, the UV intensity escalates to a robust 10, signaling the need for sun protection. The highest levels occur from 12:00 to 13:00, with a blistering maximum of 15 at 13:00. After this midday zenith, the index begins its descent, dropping to 14 at 14:00 and further declining to 12 by 15:00. As evening approaches, the UV levels soften, falling to 2 by 18:00 and finally settling back to 1 as the sun sets at 19:00. This data underscores the importance of vigilance during the peak hours to ensure skin safety in the sun.
| 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 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index in the region demonstrates extreme levels from January through September, peaking at 15 in March, April, May, June, July, and September, with only slight decreases to 14 in August and 13 in October. Notably, the high-risk months for sun exposure are predominantly from January to September, where the burn time remains at a critical 10 minutes across these months. Visitors and residents are strongly advised to take precautions by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours to minimize the risk of UV-related health issues. In November, the UV index decreases to 11 and falls to 10 in December, indicating a slight reprieve, but continued vigilance is recommended as the exposure level remains significant.
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 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |
| San Juan Lachigalla | 11 | 13 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 13 | 11 | 10 |