Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in San Martin de las Canas, Mexico, where the climate predominantly falls under the Cwa zone, characterized by warm summers and mild winters. As UV levels can soar, peaking at a staggering 14 around midday, being aware of these measurements is essential for preventing sunburn and safeguarding skin health. Knowledge of UV exposure not only helps in planning outdoor activities effectively but also plays a vital role in protecting against long-term skin damage. With the sun's intensity varying throughout the day, particularly during the peak hours from 10 AM to 3 PM, it’s important to stay informed and take protective measures against the sun's harmful rays.
As the sun rises, the UV Index gradually climbs, starting at 0 at 7:00 AM—a safe time for outdoor activities. By 9:00 AM, it reaches 2, indicating a mild risk. However, as the day progresses, the intensity peaks at 12:00 PM with a high of 11, and again at 1:00 PM and 2:00 PM, both hitting an alarming 14. This represents a very high risk of harm from unprotected sun exposure, urging caution for those outdoors. The afternoon sees a slight drop, with the index falling to 9 at 4:00 PM and tapering off as the sun begins to set, closing out the day at 1 by 7:00 PM. Remember to stay protected during those peak 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 | 14 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 12 | extreme | 10 min |
16:00 | 9 | very high | 15 min |
17:00 | 6 | high | 25 min |
18:00 | 3 | moderate | 30 min |
19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal changes, with the highest readings occurring from February to October. The most critical months, where the UV Index reaches extreme levels (11 and above), are February through October, with April peaking at 15. During these months, the recommended burn time is only 10 minutes, underscoring the urgent need for protective measures such as sunscreen, hats, and clothing. Conversely, while January, November, and December do have high UV levels, they fall under the very high category, allowing for a slightly longer burn time of 15 minutes. To ensure safety and well-being, it is essential for both visitors and residents to remain vigilant and take appropriate precautions, especially during the high-risk months of spring and summer.
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 |
San Martin de las Canas | 9 | 11 | 14 | 15 | 14 | 13 | 13 | 13 | 13 | 12 | 10 | 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 |