Last updated: July 2, 2025
In San Juan Cabeza del Rio, Mexico, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With a climate categorized as Aw, this region experiences significant sun exposure, especially during the midday hours when UV levels can reach their peak at a high of 14. Being aware of these UV trends empowers residents and visitors alike to take proactive steps against harmful effects of sun exposure, ensuring enjoyable and safe outdoor activities. Stay informed and protect your skin by paying attention to the daily UV Index, especially between 10 AM and 4 PM, when the sun's rays are most intense.
During the early hours, the UV Index remains relatively low, starting at 1 at 07:00 and advancing to 2 by 09:00. However, as the sun climbs higher, the levels surge dramatically; by 11:00, the index reaches 8, indicating a marked increase in sun exposure risk. The peak intensity occurs at 13:00 and 14:00, where it hits a staggering 14, suggesting that protective measures are essential during these hours. As the afternoon progresses, the UV levels begin to decline, dropping to 5 at 17:00 and returning to 1 by 19:00. This data underscores the importance of being sun-smart during midday hours when UV radiation is at its highest.
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 | 12 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 12 | extreme | 10 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, the UV Index demonstrates significant seasonal variation, with peak levels occurring from February to October. The highest risk months are March through October, where the UV Index consistently reaches 14, classified as extreme with a minimal burn time of just 10 minutes. Visitors and residents should take precautionary measures during these months, such as wearing protective clothing, applying sunscreen with high SPF, and seeking shade to minimize sun exposure. In contrast, January, November, and December experience lower UV levels, classified as very high, with burn times extending to 15 minutes. However, it's still important to remain vigilant about sun safety year-round.
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 Cabeza del Rio | 10 | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 10 | 9 |
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 |