Last updated: June 2, 2025
In Union Progreso, Mexico, staying informed about the UV Index is crucial for protecting your skin and overall health. With peak UV levels often reaching up to 14 around noon, understanding these fluctuations helps you take proactive measures against sunburn and long-term skin damage. Given the region's tropical climate, residents and visitors alike face elevated UV exposure risks, especially during the hottest hours of the day. By monitoring the UV Index, you can enjoy the sun safely while minimizing the potential harm that excessive sun exposure can bring.
As the sun rises, the UV Index starts off low at 1 around 7:00 AM and 8:00 AM, making for a relatively safe start to the day. However, as the clock ticks toward mid-morning, intensity ramps up dramatically from 4 at 9:00 AM to a peak of 14 by 1:00 PM. This is the moment of maximum solar exposure, with the index hitting 13 at 12:00 PM and slightly declining to 11 by 3:00 PM. As the day winds down, the UVI falls steadily, dipping back to 1 by 7:00 PM. If you're planning outdoor activities, prioritize protection during those critical hours between 10:00 AM and 3:00 PM when the sun packs the most punch!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 4 | moderate | 30 min |
10:00 | 7 | high | 25 min |
11:00 | 10 | very high | 15 min |
12:00 | 13 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 13 | extreme | 10 min |
15:00 | 11 | extreme | 10 min |
16:00 | 7 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
During the year, the UV Index experiences significant seasonal changes, with the highest readings occurring from March to October, marking a period of extreme exposure. The high-risk months are particularly concentrated from April to July, where the UV Index peaks at 15. Visitors and residents are strongly advised to take precautions during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade whenever possible, especially during the peak sun hours. While UV levels drop notably in December to a level classified as very high, it’s essential to remain cautious year-round, as even lower indices can still pose health risks. Always stay informed and prioritize skin protection to mitigate the harmful effects of UV radiation.
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 |
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 |
Union Progreso | 11 | 13 | 14 | 15 | 14 | 14 | 15 | 14 | 14 | 13 | 11 | 9 |