Last updated: June 2, 2025
In Jose Maria Morelos, Mexico, understanding the UV Index is crucial for protecting your skin from harmful ultraviolet rays. With peak UV levels often reaching a dangerous 14 during midday hours, awareness is essential for preventing sunburn and maintaining long-term skin health. The region's Cwb climate means that despite seasonal variations, UV exposure can still be significant. By keeping an eye on the UV Index, residents and visitors can make informed decisions about sun safety, ensuring fun in the sun without the risk of damaging effects.
As the sun ascends in the morning sky, the UV Index steadily climbs from a gentle 2 at 07:00 to a striking 14 by 12:00, marking the peak intensity of ultraviolet radiation. The midday hours are crucial; at 10:00, the index reaches 11, indicating a high risk of harm from unprotected sun exposure. Even as it wanes to 10 at 14:00, caution is still advised as basking in direct sunlight during these hours can lead to skin damage. As the afternoon progresses, the numbers begin to drop significantly, with a relief 4 at 16:00, and fading to 1 by 17:00. By the time the sun sets, the risk diminishes to 0, inviting a comfortable and safe evening. It's essential to stay protected, especially during the height of the day!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 2 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 11 | extreme | 10 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, UV Index levels indicate a significant fluctuation in UV exposure, with high-risk months clearly spanning from January to October, where the index ranges from 11 to 15, categorized as extreme exposure with a burn time of just 10 minutes. April, May, and July are particularly noteworthy, consistently hitting a peak index of 15. As we transition to November, the index decreases to 11, and by December, it drops to 9, signifying a shift to very high exposure with a slightly longer burn time of 15 minutes. Visitors and residents are strongly encouraged to take precautionary measures, including wearing protective clothing, applying sunscreen, and limiting sun exposure during these high-risk months to mitigate the dangers of prolonged 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 |
| 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 |
| Jose Maria Morelos | 11 | 13 | 14 | 15 | 15 | 14 | 15 | 14 | 14 | 13 | 11 | 9 |