Last updated: July 2, 2025
Understanding the UV Index in Francisco J. Mujica, Mexico is crucial for the health and well-being of its residents and visitors alike. With its warm climate, the region presents varying ultraviolet (UV) exposure risks throughout the day. This awareness is essential for effective sunburn prevention and maintaining overall skin health. Notably, during peak hours—especially between 12:00 PM and 1:00 PM—the UV levels can soar to a dangerous 15, making it vital to take protective measures. Stay informed and safeguard your skin against harmful UV rays!
The UV index for the day showcases a dramatic rise in sun intensity as the hours progress. Starting at a mild 1 during the early morning (7:00 AM), the index remains low until 9:00 AM when it reaches 3. However, by 10:00 AM, it soars to 7, heralding a sunny peak ahead. The afternoon sees an impressive climb, peaking at a maximum of 15 at 1:00 PM—the most critical time for sun exposure—before gradually tapering off to 11 by 3:00 PM and falling to 1 by nighttime. This data underscores the importance of sun safety measures during the vibrant midday hours!
| 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 | 7 | 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 | 11 | extreme | 10 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 |
During the year, the UV Index shows significant seasonal changes, peaking in the summer months. From January to March, the UV Index begins at 10 and escalates to 14 by April, maintaining that level through June. The highest readings occur in July with a UV Index of 15, indicating extremely high exposure risk. Post-July, the levels gradually decline, with October recording a UV Index of 13, before falling back to 10 in November and 9 in December, reflecting very high levels again. The high-risk months for UV exposure are February to October, which are classified as extreme or very high exposure categories. Visitors and residents are advised to take necessary precautions during these months, such as wearing protective clothing, utilizing broad-spectrum sunscreen, and seeking shade during peak sun hours to mitigate the risks associated with high UV exposure.
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 |
| Francisco J. Mujica | 10 | 12 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 13 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |