Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Doctor Castillo del Valle, Mexico, where the climate is characterized as BSh, or a hot semi-arid zone, leading to significant sun exposure. As UV radiation can peak at extreme levels—reaching a high of 13 during midday hours—it is vital to comprehend these numbers to prevent sunburn and protect skin health. By staying informed about daily UV levels, you can take proactive measures to safeguard yourself and your loved ones against the harmful effects of the sun while enjoying the beautiful weather this region has to offer.
The UV Index for today showcases a dramatic increase in solar intensity as the day progresses. Starting at a meager 0 at 07:00, it gradually climbs to 1 by 08:00, hinting at the sun's potential. A significant jump occurs at 10:00, reaching 4, but the real peak arrives during midday, with the UV Index soaring to an intense 13 at both 13:00 and 14:00. As the afternoon winds down, the index begins to taper off, standing at 10 by 16:00 and eventually descending to 2 by 19:00. It's a perfect reminder that while the sun can be inviting, peak hours demand extra caution—stay protected during those high UV times!
| 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 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 10 | very high | 15 min |
| 17:00 | 7 | high | 25 min |
| 18:00 | 4 | moderate | 30 min |
| 19:00 | 2 | low | 45 min |
The UV Index demonstrates significant seasonal variations, with the highest levels occurring from February to October. March through October presents extreme exposure levels, particularly from April to September, where the UV Index peaks at 15 in April and remains above 13 throughout the summer months. February and March also feature extreme ratings, indicating high risk. January and November are classified as very high, with burn times of just 15 minutes. As a result, visitors and residents should take precautionary measures from February to October, minimizing sun exposure, especially during midday hours, and applying broad-spectrum sunscreen. In contrast, during the cooler months of December and January, while UV levels are lower, it’s still wise to remain vigilant against skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doctor Castillo del Valle | 8 | 11 | 12 | 15 | 14 | 14 | 14 | 13 | 13 | 11 | 9 | 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 |