Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of San Juanico, Mexico, where sunny days are the norm. Knowledge of UV levels helps prevent sunburn and promotes better skin health, making it essential for outdoor activities in this vibrant region. With a BWh climate that features intense sunshine, particularly during the peak hours—where the UV Index can soar to a staggering 12 around midday—being aware of these levels can safeguard your skin against harmful effects. Stay informed and enjoy all that San Juanico has to offer while protecting your health!
As the sun rises, the UV Index begins its ascent, starting at a modest 1 by 07:00 AM. The intensity gradually increases, reaching 3 at 09:00 AM and surging to 5 by 10:00 AM. The peak of the day arrives with a striking 12 at both 1:00 PM and 2:00 PM, indicating a high risk for unprotected skin. By 3:00 PM, the index begins to decline, dropping to 10, then tapering off to 5 around 5:00 PM. As evening approaches, the UV Index cools down to 1 by 7:00 PM, suggesting a much safer environment for outdoor activities. Stay protected during those peak afternoon hours when the sun's rays are most intense!
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 | 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 | 10 | very high | 15 min |
16:00 | 8 | very high | 15 min |
17:00 | 5 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV levels exhibit significant seasonal variations, peaking during the late spring and summer months. January starts with a UV Index of 6 (high), allowing for a burn time of 25 minutes, but this escalates dramatically in February with a UV Index of 8 (very high) and the burn time decreasing to just 15 minutes. The highest risk months are from March to September, where the UV Index remains consistently at 12 (extreme), resulting in an alarming burn time of only 10 minutes. As we transition into October, the UV Index decreases slightly to 9 (very high), but it still poses a risk with a 15-minute burn time. By the end of the year, in November and December, the UV Index returns to 7 and 6 respectively, both categorized as high, with burn times extending back to 25 minutes. Visitors and residents are advised to take precautions during high-risk months, particularly from March through September, by wearing protective clothing, using broad-spectrum sunscreen, and limiting sun exposure, especially during peak hours.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
San Juanico | 6 | 8 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 9 | 7 | 6 |
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 |