Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Emiliano Zapata, Mexico, where sunny days are the norm. High levels of ultraviolet radiation can lead to sunburn, skin damage, and long-term health issues, making it essential to stay informed about daily UV exposure. With a tropical climate and peak UV Index values reaching as high as 13 around midday, it’s important to take preventive measures to protect your skin during outdoor activities. By being aware of the UV levels, you can enjoy the beautiful weather while safeguarding your health.
As the day begins, the UV Index starts at a refreshing 0 at 7:00 AM, indicating a safe level of sun exposure. However, by 10:00 AM, it surges to 4, signaling a shift in UV intensity. The sun climbs higher, peaking at 12:00 PM with a maximum index of 10—a critical time for sun safety. From this zenith, the UV Index fluctuates, hitting 13 at 2:00 PM before gradually decreasing to 6 by 5:00 PM. As dusk approaches, levels drop further to 1 by 7:00 PM, concluding the day's UV journey. It's a reminder of the sun's power and the importance of protecting your skin when the UV Index is high. Stay vigilant and enjoy the sunshine wisely!
| 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 | 12 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | 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, seasonal UV changes exhibit a significant shift, with the highest UV Index values occurring from March to September, categorized as extreme. Specifically, the months of March through August consistently show a UV Index of 13, translating to a quick burn time of just 10 minutes. January and February also present a high risk, with UV Index values of 8 and 10, respectively, while burn times remain at 15 minutes. As fall approaches, November drops to a UV Index of 9, and December further decreases to 7, allowing for longer burn times of 15 and 25 minutes. Visitors and residents are strongly advised to take extra precautions, especially between March and September, when the risk of sunburn is highest. This includes wearing sunscreen, protective clothing, and seeking shade during peak hours to ensure safety while enjoying outdoor activities.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Emiliano Zapata | 8 | 10 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 12 | 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 |