Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Ejido General Leandro Valle, Mexico, where the sun's intensity can pose significant risks throughout the day. With peak UV levels reaching as high as 12 around midday, awareness of these fluctuations is essential for preventing sunburn and protecting skin health. In this semi-arid climate (BSk), where sunny days are the norm, recognizing the dangers of overexposure to UV radiation can help you enjoy the outdoors safely and maintain well-being over time. Stay informed and take proactive measures to shield yourself from the sun's harmful effects!
The UV Index throughout the day presents a vivid picture of sun intensity. In the early morning, starting at 07:00, the index is a gentle 1, gradually rising to 2 by 08:00. The real surge begins at 09:00, where it climbs to 4, reaching a peak of 12 around 13:00. Noteworthy are the hours between 11:00 and 14:00, when the index soars, hitting a maximum of 11 at 12:00 before slightly easing to 11 again by 14:00. As afternoon turns to evening, the UV levels decrease significantly, dropping to 8 by 15:00, and falling further to 1 by 19:00. This data emphasizes the importance of sun protection during midday hours when the UV radiation is at its strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV changes reveal significant variations in exposure risks. From January to December, the UV Index escalates from a moderate level of 5 to an extremely high level of 12 in the summer months of June and July, before tapering off in the fall and winter. The high-risk months for UV exposure are March through September, particularly during April to August, when the index consistently hits extreme levels, decreasing only in October to a very high 8. To ensure safety, it is critical for both visitors and residents to take precautions during these months, such as using sunscreen, wearing protective clothing, and seeking shade during peak sun hours, especially when the burn time drops to as little as 10 minutes. By staying informed and cautious, everyone can enjoy outdoor activities while minimizing the risk of harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ejido General Leandro Valle | 5 | 7 | 9 | 11 | 11 | 12 | 12 | 11 | 11 | 8 | 6 | 5 |
| 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 |