Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of San Antonio del Varal, Mexico, where the sun shines brightly throughout the year. As part of the BSh climate zone, this picturesque locale can expose individuals to significant UV levels, especially during the midday hours. With peak values soaring as high as 15 between noon and 2 PM, being aware of these fluctuations not only helps in preventing painful sunburns but also plays a vital role in maintaining long-term skin health. By keeping a close eye on the UV Index, you can enjoy the sunny beauty of San Antonio del Varal while safeguarding your skin from harmful rays.
As the day unfolds, the UV Index rises sharply, reflecting the sun's increasing intensity. Starting off gently at 1 from 7:00 AM to 8:00 AM, it climbs to a moderate 3 by 9:00 AM. The real heat kicks in around 10:00 AM, with the index reaching 5. By 11:00 AM, it sizzles at 9, peaking dramatically at 12:00 PM with a blistering 13. From 1:00 PM to 2:00 PM, the UV Index hits its zenith at 15, making it imperative to seek shade and apply sunscreen. The intensity gradually tapers off, dropping to 9 by 4:00 PM, 6 by 5:00 PM, and finally settling back to 1 by 7:00 PM. This midday sun offers a vivid reminder of the importance of sun safety as the hours glide by.
| 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 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | 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 |
The UV Index experiences significant fluctuations throughout the year, peaking during the months of March to October, where values consistently reach a high level of 14 or 15, classified as extreme exposure. Notably, February to May sees the most critical UV levels, with March and April recording the highest at 14 and 15 respectively, leading to a rapid burn time of just 10 minutes. As we transition into winter, months like November and December show a decline, but values remain elevated with UV indices of 9 and 8, resulting in very high exposure and burn times of 15 minutes. Visitors and residents are strongly advised to take precautions, especially from February through October, by wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize 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 |
| San Antonio del Varal | 9 | 11 | 14 | 15 | 15 | 14 | 14 | 14 | 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 |