Last updated: August 1, 2025
Understanding the UV Index in La Reforma, Mexico is crucial for protecting your skin from harmful ultraviolet radiation. With high UV levels, especially between 11 AM and 2 PM, knowing the index can help you take necessary precautions to prevent sunburn and promote long-term skin health. La Reforma's climate, characterized by abundant sunshine, means that residents and visitors face increased exposure risks throughout the day. By keeping an eye on the UV Index, you can enjoy the beautiful weather while safeguarding your skin against potential damage.
As the sun rises, the UV Index starts off low at 1 at 07:00 and remains gentle until 09:00. However, from 10:00, the intensity begins to ramp up, reaching 6 by mid-morning. The real peak occurs between 12:00 and 14:00, where the UV Index hits a scorching 12, indicating the need for sunscreen and protective measures. As the afternoon progresses, the index gradually declines to 9 by 15:00, then further to 4 by 17:00, mirroring the sun's descent. By 18:00, it dips to 2, and finally settles back at 1 by 19:00, ushering in a cooler evening. It's a vivid reminder to stay protected during those intense midday 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 | 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 | 6 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes demonstrate a significant increase in the UV Index, peaking in the spring and summer months. The high-risk months for UV exposure are from February through September, particularly April to August, where the Index reaches extreme levels of 12 to 13. During these periods, burn times decrease to as little as 10 minutes, emphasizing the urgency for effective sun protection. Visitors and residents are strongly advised to wear sunscreen, protective clothing, and sunglasses, especially during midday hours, and to seek shade whenever possible to minimize the risk of skin damage. As winter approaches, UV levels decrease, but vigilance is still necessary, especially in January and November when conditions remain high.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
La Reforma | 7 | 9 | 10 | 12 | 13 | 12 | 12 | 12 | 12 | 10 | 8 | 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 |