Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Francisco I. Madero, Mexico, where strong sun exposure can pose significant health risks. With a BSk climate, the region experiences sharp increases in UV levels, peaking at 12 and 13 between noon and 2 PM. Being aware of these UV levels is vital for preventing sunburn and maintaining skin health. In a sun-soaked environment, knowing when to seek shade or apply protective measures can make all the difference in safeguarding your skin while enjoying the beautiful weather. Stay informed and protect yourself from the sun's intense rays!
The UV Index during the day showcases a clear peak in intensity, reaching a maximum of 13 between 1:00 PM and 2:00 PM. As the day begins at 7:00 AM with a minimal index of 1, the sunlight gradually intensifies, climbing to 12 by noon. The 10 AM hour marks a pivotal moment, as the index escalates to 7, indicating an increasingly strong potential for skin damage. Post-peak, the UV levels begin to decline, tapering off to 4 by 5:00 PM, and returning to 1 at 7:00 PM. It's a vivid reminder that from morning to early afternoon, sun safety precautions are crucial to protect against harmful UV exposure!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 10 | very high | 15 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 |
Throughout the year, UV exposure significantly fluctuates, with February through September identified as high-risk months due to extreme UV Index levels reaching as high as 13. During this period, the recommended burn time is notably reduced to just 10 minutes, necessitating vigilant sun protection. March, April, May, June, July, August, and September stand out as particularly dangerous times, while January, November, and December reflect a return to high exposure levels with longer burn times of 25 minutes. Visitors and residents are strongly advised to take precautionary measures, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sunlight hours, especially from late winter through early fall when the sun's intensity is greatest.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Francisco I. Madero | 6 | 9 | 11 | 13 | 13 | 13 | 13 | 13 | 12 | 10 | 7 | 6 |
| 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 |