Last updated: July 2, 2025
In Nueva Tenochtitlan, Mexico, awareness of the UV Index is crucial for maintaining skin health and preventing sunburns. Understanding UV levels helps residents and visitors alike take necessary precautions, especially during the peak hours of the day when the index soars to a staggering 14 at noon. With the region's Aw climate, characterized by warm temperatures and abundant sunshine, UV exposure risks can quickly escalate, making it essential to monitor the index regularly. By staying informed, you can enjoy the beautiful outdoors while effectively safeguarding your skin from harmful UV rays.
At dawn, the UV Index starts off low, with a maximum of 1 at both 07:00 and 08:00. As the sun climbs higher, the intensity begins to rise sharply, reaching 3 by 09:00 and jumping to 6 by 10:00. The real heat hits at 11:00, peaking at a scorching 10, before hitting an astonishing 13 at 12:00 and peaking at 14 by 13:00. The afternoon witnesses a slight decline, settling back to 13 at 14:00 and dropping to 11 by 15:00. As the day winds down, the UV Index continues to lessen, falling to 7 at 16:00, and further slipping to 4 by 17:00. By 18:00, it's down to 2, and as night falls, it returns to a safe 1 by 19:00. Be sure to stay sun safe during peak hours when the UV Index soars!
| 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 | 6 | 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 |
Throughout the year, significant seasonal changes in the UV Index are observed, with high-risk months spanning from February to September when the index reaches extreme levels, peaking at 14. During these months, the recommended burn time is notably short, at just 10 minutes, emphasizing the need for protective measures. Even in the winter months, the UV Index remains a concern, particularly in January and February with values of 10 and 12, respectively, where exposure is categorized as very high and extreme. For residents and visitors, it is crucial to stay vigilant and adopt protective strategies, such as wearing sunscreen, hats, and sunglasses, especially during the high UV season, to mitigate the risk of sunburn and long-term skin damage.
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 |
| Nueva Tenochtitlan | 10 | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 13 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |