Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Juan Diego, Mexico. Awareness of UV levels not only aids in preventing painful sunburns but also plays a vital role in safeguarding long-term skin health. With a climate characterized by its consistent sun exposure, Juan Diego experiences significant UV risks, especially during peak hours where the index can reach 12. By staying informed and taking precautions, you can enjoy the beautiful Mexican sunshine while protecting your skin from harmful UV rays.
As the sun rises, the UV Index starts off mild at 7:00 AM (1), gradually warming up to 2 by 9:00 AM. The intensity of ultraviolet rays reaches a notable 5 at 10:00 AM, but it’s during the peak hours around noon that the index skyrockets to its maximum of 12 at 1:00 PM. This high reading persists until 2:00 PM, presenting a strong reminder to stay protected from the sun’s rays. As the afternoon progresses, the UV Index begins to taper off, dropping to 11 at 3:00 PM and gradually declining to 1 by 7:00 PM. Whether you're planning outdoor activities or just soaking up the sun, be sure to take precautions during those high UV hours!
| 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 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the summer months. From January to March, the index ranges from 10 to 13, indicating a very high to extreme risk of UV exposure, with a burn time of just 15 to 10 minutes. The months of April through October experience the highest UV levels, consistently scoring 12 to 14 and remaining in the extreme exposure category, with a burn time reduced to a mere 10 minutes. The highest risk months are May and June, where the UV index reaches 14, signifying a critical need for protective measures. In contrast, November and December present a lower risk, with indexes of 9 and 8, categorized as very high. Given these insights, it is crucial for both visitors and residents to take appropriate precautions, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours, especially between April and October when UV exposure can be most dangerous.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juan Diego | 10 | 12 | 13 | 13 | 14 | 14 | 12 | 13 | 13 | 12 | 9 | 8 |
| 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 |