Last updated: August 1, 2025
Understanding the UV Index is crucial for residents of Ciudad Tula, Mexico, where the climate is classified as Cwa—characterized by hot summers and mild winters. With UV levels peaking at a hazardous 14 during midday hours, awareness of these fluctuations can significantly impact your skin health and help prevent painful sunburns. As you enjoy the warm rays, staying informed about the UV Index empowers you to take the necessary precautions against overexposure, ensuring you can safely enjoy the sunshine while protecting your skin from potential damage.
As the sun rises, the UV Index starts off gently, peaking at 1 by 08:00. However, as the day progresses, the intensity ramps up significantly. By 10:00, the index reaches 5, but the real heat kicks in at 12:00, soaring to an intense 11. The peak occurs at 14:00, where it hits a blistering 14—a clear signal to seek shade and protect your skin. After this, the index begins to drop, settling at 12 by 15:00 and gradually descending to 3 by 18:00. As twilight approaches, the UV levels ease back to 1 by 19:00, marking a dramatic contrast to the midday sun's peak. Stay vigilant and wear sun protection during these critical hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | 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 | 11 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 12 | extreme | 10 min |
16:00 | 9 | very high | 15 min |
17:00 | 5 | moderate | 30 min |
18:00 | 3 | moderate | 30 min |
19:00 | 1 | low | 45 min |
Throughout the year, UV exposure varies significantly, with the high-risk months occurring from March to October when the UV Index reaches extreme levels, peaking at 14 in May, July, and August. During these months, individuals are at highest risk for sunburn, with a burn time of just 10 minutes. Conversely, although January and February show a very high UV Index of 8 and 10 respectively, the burn time remains relatively short at 15 minutes. As the year progresses into November and December, the risk decreases, with a drop to a UV Index of 9 and 7, allowing for longer exposure times of 15 and 25 minutes before burning occurs. Visitors and residents are strongly advised to take precautionary measures, especially during the peak summer months by using sunscreen, wearing protective clothing, and seeking shade to minimize UV exposure and protect skin health.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ciudad Tula | 8 | 10 | 13 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 9 | 7 |
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 |