Last updated: August 1, 2025
In San Jose del Llano, Mexico, awareness of the UV Index is crucial for protecting your skin and overall health. With an intense sun exposure typical of its Cfa climate, understanding UV levels is vital for sunburn prevention and long-term skin health. During peak hours, particularly between 12 PM and 2 PM, the UV Index can soar to dangerous levels, reaching 14, indicating a high risk of harm from unprotected sun exposure. Stay informed and take proactive measures to enjoy the sun safely while minimizing the health risks associated with harmful UV radiation.
The UV Index for today paints a clear picture of the sun's intensity throughout the day. Starting off gently, the morning hours from 7:00 AM to 9:00 AM see values at a mild 1 to 2. However, as the clock strikes 10:00 AM, the index skyrockets to 5, signaling a notable rise in UV radiation. By 11:00 AM, the intensity hits 8, peaking dramatically at 12:00 PM with a blistering 12. The afternoon peak occurs between 1:00 PM and 2:00 PM, where it reaches its maximum of 14, urging caution for outdoor enthusiasts. As the sun begins its descent, the index gradually declines to 9 at 4:00 PM and further down to 6 at 5:00 PM. In the evening, the UV exposure wanes, dropping back to a soothing 3 by 6:00 PM and returning to 1 by 7:00 PM. Be sure to protect your skin during those peak hours!
| 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 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | 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 |
The seasonal UV changes indicate that the period between March and October presents the highest risks for sun exposure, with UV Index values consistently peaking at 14 during the summer months of May to August. Notably, March sees a significant jump to an extreme rating of 13, marking the start of high-risk months alongside April and September. Visitors and residents are strongly advised to take precautions during these high-risk months, especially from March to October, where the burn time can drop to just 10 minutes. Daily UV awareness is crucial; wearing sunscreen, protective clothing, and seeking shade during peak hours can significantly mitigate the risk of sunburn and long-term skin damage. November and December provide a slight respite with lower UV levels, yet caution is still encouraged in November where the UV Index remains very high.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Jose del Llano | 8 | 10 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 12 | 9 | 7 |
| 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 |