Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Zaragoza (Puerto de Medina), Mexico, where the climate can lead to significant sun exposure. Awareness of UV levels is essential not just for preventing painful sunburns, but also for safeguarding long-term skin health. At peak times, such as between 12 PM and 2 PM, the UV Index can soar to levels as high as 15, indicating extreme risk for harmful effects from the sun. Given Zaragoza’s predominantly Cwb climate, characterized by sunny days, it's important to stay informed and take appropriate sun protection measures to enjoy the outdoors safely.
The UV Index today showcases a dramatic change from the early hours to midday, starting with a mild 1 at 07:00 and 08:00. As the sun rises, the intensity escalates, peaking at a striking 15 between 13:00 and 14:00. Midday radiance brings the highest reading of 13 at 12:00, emphasizing the need for sun protection during these crucial hours. As the afternoon progresses, the index gradually declines, with values dropping to 5 by 17:00 and returning to a safe 1 by 19:00. Ideal for outdoor enthusiasts, this UV profile serves as a reminder to stay vigilant against sun exposure during peak 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 | 6 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index displays significant seasonal variations, with the highest readings occurring from March to October, where it consistently remains in the extreme category at 15 or near 14. February sees a peak UV Index of 12, categorized as extreme, while January starts at a slightly lower index of 10, which is still classified as very high. As we transition into November and December, the UV Index decreases, returning to a very high category with values of 10 and 9 respectively. Consequently, March through October represents the high-risk months for UV exposure, urging both visitors and residents to take proper precautions during these periods. It is advisable to limit sun exposure to no more than 10 minutes during peak hours, apply broad-spectrum sunscreen, wear protective clothing, and seek shade whenever possible, especially during these heightened UV conditions.
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 |
| Zaragoza (Puerto de Medina) | 10 | 12 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 12 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |