Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in Las Mesas, Mexico, where the sun's intensity can soar to alarming levels, especially during the peak afternoon hours. With a hot Aw climate, the UV Index can reach 14, indicating an extreme risk of harm from unprotected sun exposure. Being aware of these UV levels is vital for preventing sunburn and maintaining long-term skin health. By understanding when to seek shade or apply sunscreen, you can enjoy the sunny days of Las Mesas while safeguarding your skin against potential damage.
The UV Index for the day reveals a clear pattern of increasing intensity as the sun climbs higher in the sky. Starting from a safe 0 at 07:00, the index gently rises to 1 at 08:00 and then to 2 by 09:00. However, as midday approaches, the readings spike dramatically, peaking at an intense 14 at 14:00. This midday heat marks the highest risk for sun exposure, with a staggering 11 seen at 12:00 and 13 at 13:00. The afternoon brings a gradual decline, with the UV Index dropping to 9 at 16:00 and continuing to decrease to 2 by 18:00. As the day transitions into evening, the risk subsides, settling at 1 by 19:00. This data underscores the importance of sun safety during peak hours, particularly between 11:00 and 15:00.
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 | 4 | moderate | 30 min |
11:00 | 8 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 13 | extreme | 10 min |
15:00 | 12 | extreme | 10 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 |
The seasonal UV changes reveal that the months from February to October are particularly concerning, as most months in this period have an extreme UV Index, peaking at 14 in March, May, June, July, and September. The high-risk months for sun exposure are therefore from February through October, where the recommended burn time is only 10 minutes. In contrast, January, November, and December are slightly less critical with very high UV Index levels of 10 and 9, allowing for burn times of 15 minutes. Visitors and residents should take precautionary measures during these months by seeking shade, wearing protective clothing, and applying sunscreen frequently to minimize the risk of 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 |
Las Mesas | 10 | 11 | 14 | 13 | 14 | 14 | 14 | 13 | 14 | 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 |