Last updated: June 2, 2025
In San Juan Cabeza del Rio, Mexico, understanding the UV Index is crucial for safeguarding your skin and overall health. With a climate categorized as Aw, the region experiences significant UV exposure, particularly during the midday hours when levels peak as high as 14. Being aware of these UV levels can help you prevent sunburn and reduce the risk of long-term skin damage. As the sun's intensity varies throughout the day, it's essential to stay informed to enjoy outdoor activities safely while protecting yourself from harmful effects.
As the sun rises, the UV Index begins at a mild 1 at 7:00 AM and remains low until 9:00 AM, when it escalates to 3. The real intensity kicks in around 10:00 AM, reaching 5, and the index climbs dramatically as the day progresses. By 12:00 PM, it peaks at a scorching 12, and an impressive 14 is recorded at both 1:00 PM and 2:00 PM. The sun starts to wane after that, with the index gradually dipping to 8 by 4:00 PM, before descending to a gentle 2 by 6:00 PM. The day concludes with a return to a low 1 at 7:00 PM, making it clear that midday sun poses the greatest danger – a reminder of the importance of sun protection during those peak hours.
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 | 9 | 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 |