Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Mier, Mexico, where the sun’s rays can be particularly intense due to its BSh climate. Awareness of UV levels helps prevent sunburn and safeguard long-term skin health, making it essential for everyone to check the index regularly. With peak readings soaring to a startling 12 around midday, the risks of overexposure increase significantly. By staying informed about daily UV exposure, you can enjoy the beautiful sunny days in Mier while protecting your skin from harmful effects.
Today’s UV Index varies dramatically throughout the day, beginning at a mild 1 from 7:00 AM to 9:00 AM, making it a safe time for outdoor activities with minimal sun protection. As the sun climbs higher, the index rises to a moderate 4 by 10:00 AM and then escalates sharply, peaking at a blistering 12 between 1:00 PM and 2:00 PM. It's crucial to take precautions during this time, such as wearing sunscreen, hats, and sunglasses. Following the peak, the intensity diminishes gradually, dropping to 5 by 5:00 PM and settling back to 1 as evening approaches at 7:00 PM. Be mindful of the sun’s potency; it’s wise to seek shade or limit direct exposure during peak hours!
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 | 4 | moderate | 30 min |
11:00 | 7 | high | 25 min |
12:00 | 10 | very high | 15 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, the UV Index exhibits significant seasonal fluctuations, with high-risk months observed from February to September, when the UV Index reaches extreme levels of 11-12. This period highlights the need for heightened sun safety measures, especially in April through August, when visitors and residents should be particularly cautious. Burn times decrease dramatically during these months, with only 10 minutes of unprotected sun exposure being safe. As the year progresses into October, November, and December, the UV Index gradually declines, falling back to a high of 7 in November and 6 in January and December, allowing for more moderate sun exposure times of 15-25 minutes. To ensure safety, it's essential for everyone to use effective sun protection, including sunscreen, clothing, and shade, especially during the high-risk months.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mier | 6 | 8 | 10 | 11 | 12 | 12 | 12 | 12 | 11 | 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 |