Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of San Francisco del Progreso, Mexico, where the warm climate can lead to varying levels of sun exposure throughout the day. As the UV Index frequently peaks at 15 during midday hours, it's vital to be aware of these levels to prevent sunburn and protect your skin health. With its mild climate (Cfb), the region presents unique challenges, especially when the sun's rays can be particularly intense, making it essential to stay informed about UV risks to enjoy outdoor activities safely.
The UV Index throughout the day showcases a dynamic shift in sun intensity. Starting gently at 1 during the early hours, it quickly climbs to 3 by 09:00. As the sun reaches its peak, the index escalates dramatically to a striking 14 by 12:00, signaling a high risk of harm from unprotected sun exposure. The apex arrives at 15 between 13:00 and 14:00, urging caution for anyone outdoors. Gradually, as the afternoon fades, the index dips to 12 at 15:00, then further descends to 2 by 18:00, finally settling back at 1 by 19:00. It’s a vivid reminder of the day's sun's power, with the highest risks occurring in the early afternoon. Stay protected and enjoy the sun safely!
| 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 | 14 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | 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 |
Throughout the year, UV Index levels exhibit significant seasonal fluctuations, with high-risk months typically from February to October. During this period, the UV Index peaks at 15, categorized as extreme, particularly from April to July, necessitating vigilant sun safety measures. In these months, the burn time is only 10 minutes, indicating a critical need for protective measures such as sunscreen, hats, and UV-blocking sunglasses. Conversely, November and December see a decrease in UV exposure, categorized as very high, with a lengthened burn time of 15 minutes in those months. Therefore, both visitors and residents are strongly advised to monitor UV levels regularly and take necessary precautions, especially during the warmer, sunnier months to minimize the risk of skin damage.
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 Francisco del Progreso | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |