Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of La Caja, Mexico, where the sun’s intensity can be quite formidable. With a climate classified as Cwb, you may find yourself basking in beautiful weather, but it’s essential to be aware of the potential for harmful ultraviolet radiation. The UV Index indicates the strength of sun’s UV rays at different times of the day, peaking between 12:00 PM and 2:00 PM with a high rating of 14—significantly elevating the risk of sunburn and long-term skin damage. By keeping track of UV levels, you empower yourself to take proactive measures for sun protection, ensuring your skin health is prioritized while enjoying all that La Caja has to offer. Remember, awareness is key to safer sun exposure!
As the sun rises, the UV Index gradually climbs throughout the morning, peaking in the afternoon. At 07:00, it starts at a safe 0 but quickly rises to 1 by 08:00. By 10:00, the index reaches 5, indicating moderate UV exposure. The real intensity hits at 12:00, soaring to a striking 12, and it peaks at 14 from 13:00 to 14:00, signaling a high level of risk for sunburn. As the afternoon progresses, the index begins to decline, dipping to 9 by 16:00, and further decreasing to 6 by 17:00. By evening, the UV Index retreats to 3 at 18:00 and finally settles at 1 by 19:00. Stay protected during those peak hours to enjoy the sun safely!
| 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 | 9 | very high | 15 min |
| 12:00 | 12 | 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, there are significant fluctuations in UV levels, with the highest indices occurring from February to October. This period sees extreme UV conditions, particularly from March to October where the UV Index consistently registers 14 to 15. January and November reflect very high exposure (UV Index 10) with a burn time of 15 minutes, while December sees a slight dip to a UV Index of 9. Visitors and residents are strongly advised to take precautions during the months of February to October, as these are categorized as high-risk months for skin damage, with a burn time of only 10 minutes. Wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours are essential measures to safeguard against harmful UV exposure.
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 |
| Iztapalapa UVI | 10 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 10 | 8 |
| La Caja | 10 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 10 | 9 |
| 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 |