Last updated: August 1, 2025
In Jose Maria Morelos, Mexico, being aware of the UV Index is essential for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike to take appropriate precautions against the sun’s harmful rays, especially during peak hours when values can soar as high as 14, indicating an extreme risk of harm from unprotected sun exposure. With a semi-arid climate characterized by strong sunlight, the potential for skin damage increases significantly, making it crucial to monitor UV levels throughout the day. By staying informed about the UV Index, everyone can enjoy the beautiful sunshine with the right protective measures in place!
The UV Index data paints a vivid picture of the sun's intensity throughout the day. Starting off gentle at 07:00 with a reading of 0, the index gradually climbs. By 10:00, it reaches 4, signaling moderate exposure. The peak occurs at 14:00, hitting a striking 14—a high risk period that calls for protective measures. As the afternoon wanes, the index begins to decline, dropping to 10 by 16:00 and then tapering off to 2 by 19:00. This progression emphasizes the importance of sun safety during midday hours when the sun is most potent.
| 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 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jose Maria Morelos | 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 |