Last updated: May 3, 2025
Understanding the UV Index is vital for residents and visitors of San Antonio de las Alazanas, Mexico, where the BSk climate brings sunny days with significant UV exposure risks. Knowledge of daily UV levels is essential for sunburn prevention and maintaining long-term skin health, particularly when the index peaks at a striking 14 around midday. With UV radiation intensity surging as the sun climbs in the sky, being aware of these levels allows you to take proactive measures against harmful effects. Make informed choices to protect your skin while enjoying the beautiful outdoors of this vibrant region!
As the sun rises, the UV Index begins at a gentle 1 by 7:00 AM, making morning activities safe. However, as the day progresses, the intensity ramps up dramatically. By 10:00 AM, the index reaches 5, indicating a moderate risk of harm from unprotected sun exposure. The peak arrives at 12:00 PM with a high of 12—a clear signal to seek shade! Following the peak, the index gradually declines yet remains significant until late afternoon, dropping back to 5 by 5:00 PM and finally retreating to 1 by sunset. This data serves as a reminder to stay vigilant and protect your skin during the sun’s strongest hours, particularly between 11:00 AM and 2:00 PM when the UV rays are most potent.
| 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 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | 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 |
The UV Index experiences significant fluctuations throughout the year, with the highest values occurring from March to October. The peak months are April and May, both registering an extreme UV Index of 14, where the optimal burn time is reduced to just 10 minutes. Visitors and residents should be particularly vigilant during these high-risk months, as well as in February and March, when the UV index reaches 10 and 12, respectively. In the summer months of June through September, the index remains high at 13, with the risk of skin damage persisting. To minimize exposure, individuals are advised to seek shade, wear protective clothing, and use sunscreen, especially during peak sun hours. As the year winds down, November and December show lower UV levels; however, caution should still be exercised, particularly in November when the UV index is still classified as very high.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Antonio de las Alazanas | 8 | 10 | 12 | 14 | 14 | 13 | 13 | 13 | 13 | 11 | 8 | 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 |