Last updated: May 3, 2025
In San Francisco Epunguio, Mexico, understanding the UV Index is crucial for protecting your skin and overall health. The UV Index serves as a vital tool to gauge sun exposure, helping residents and visitors alike make informed decisions about outdoor activities. With peak UV levels reaching as high as 14 during midday, awareness is key to preventing sunburn and long-term skin damage. Given the region's Cwb climate, characterized by its mild temperatures but significant sun exposure during the day, staying vigilant about UV levels can safeguard your skin while you enjoy the beautiful surroundings.
As the sun rises, the UV Index begins its climb from a gentle 1 at 07:00, nudging upwards to 2 by 09:00. By mid-morning, the intensity escalates to 5 at 10:00, signaling the need for some sun safety. The peak arrives at noon with a sizzling 12, reaching a blistering 14 by 13:00 and 14:00, marking the hours of most intense sun exposure. As afternoon fades, the UV Index gradually recedes to 12 at 15:00, before cooling further to 5 by 17:00, and finally winding down to 1 by 19:00. During the peak hours, make sure to stay protected and enjoy the sunshine responsibly!
| 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 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
During the year, the UV Index shows notable seasonal changes, with highest UV levels occurring from February through October. The months of March, April, May, June, July, August, and September consistently fall within the extreme exposure category, peaking at 15 in April. Visitors and residents should be particularly cautious during these high-risk months, as the burn time is as little as 10 minutes during this period. It is advised to take protective measures, such as wearing sunscreen, protective clothing, and hats, and seeking shade during peak hours to minimize the risk of sunburn. In contrast, November and December see a decrease in UV levels, categorized as very high, with a burn time of 15 minutes, suggesting a slight but essential drop in overall sun exposure risk as the year comes to a close.
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 |
| San Francisco Epunguio | 10 | 11 | 14 | 15 | 14 | 14 | 13 | 14 | 14 | 12 | 10 | 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 |