Last updated: May 3, 2025
In San Juan Pan de Arriba, Mexico, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. The UV Index provides insights into the sun’s intensity throughout the day, helping residents and visitors make informed decisions about outdoor activities. With a climate characterized by dry and sunny conditions, the potential for harmful UV exposure peaks, especially from midday to early afternoon, with values soaring to 15. Understanding these UV levels not only safeguards your skin but also ensures you enjoy the beautiful outdoors responsibly. Stay informed and protect yourself under the Mexican sun!
As the sun rises, the UV Index starts off modestly, peaking at 1 by 8:00 AM. However, as the day progresses, it experiences a dramatic surge. Expect a notable climb by 10:00 AM, hitting 5, and then reaching its zenith at 1:00 PM with an impressive 15. The intensity remains high throughout the afternoon, only slightly easing towards the evening. By 6:00 PM, the index drops to 3, and settles back to 1 by 7:00 PM. It's a reminder to stay sun-safe during peak hours, especially from 11:00 AM to 2:00 PM, when the UV radiation is strongest!
| 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 | 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 | 10 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, with high-risk months spanning from February to October. During this period, the UV Index reaches extreme levels, peaking at 15 in April and May. Notably, March to October maintains an extreme exposure category where the burn time is as short as 10 minutes. The highest risk for sunburn occurs in early months like February (UV Index 11) and peaks from March to May, where visitors and residents should exercise extreme caution. In contrast, November and December present lower UV Index values categorized as very high (9-10), allowing for slightly longer safe exposure times (15 minutes). To minimize skin damage and health risks, it is advised for individuals to seek shade, wear protective clothing, and apply sunscreen, especially during the peak UV hours from late morning to early afternoon.
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 |
| San Juan Pan de Arriba | 9 | 11 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 10 | 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 |