Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in San Juan Pan de Arriba, Mexico, where the sun's intensity can vary significantly throughout the day. With a climate classified as BSk, this picturesque town experiences high UV levels, particularly between 10 AM and 3 PM, peaking at an alarming 14 around 2 PM. Being aware of these levels is essential for sunburn prevention and maintaining skin health, as overexposure to UV radiation can lead to serious health issues. By staying informed about the UV Index, locals can enjoy the beautiful outdoor environment while taking necessary precautions against harmful UV rays.
As the day unfolds, the UV Index showcases a fascinating progression. Starting off at a gentle 0 at 7:00 AM, it gradually climbs to a modest 1 by 8:00 AM. The intensity picks up at 9:00 AM, reaching 2, and then takes a notable leap to 5 by 10:00 AM. The sun reaches its peak at 12:00 PM, where the index soars to a striking 11, signaling a high level of ultraviolet radiation. This intensity escalates further, hitting an impressive 14 at 2:00 PM—the highest point of the day. As the afternoon transitions to evening, the index begins to taper off, dropping to 12 at 3:00 PM, then sliding to 9 at 4:00 PM, and finishing the day at a soft 1 by 7:00 PM. It's a reminder for everyone to stay protected under the sun, especially during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | 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 | 13 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 12 | extreme | 10 min |
16:00 | 9 | 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 |