Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of José María Morelos y Pavón, Mexico, where the warm Am climate often leads to increased sun exposure. Being aware of UV levels throughout the day can significantly impact your skin health and help prevent unwanted sunburn. As you navigate this sun-kissed paradise, it's essential to remain vigilant, especially during peak hours when UV rays hit a maximum of 14 around midday. Staying informed about these fluctuations allows you to plan your outdoor activities safely and make informed choices to protect your skin while enjoying the vibrant local culture.
Throughout the day, the UV Index exhibits a dramatic rise, peaking during midday. Starting at a gentle 1 at 7:00 AM, it gradually climbs to 3 by 9:00 AM, before surging to an intense 13 by noon. The sun reaches its zenith at 1:00 PM, with a blistering 14, warning outdoor enthusiasts to take extra precautions. As the afternoon progresses, the index begins to decline, dropping to 7 by 4:00 PM, and then tapering further to 2 by 6:00 PM. By 7:00 PM, the day winds down with a safe 1 on the index. Those enjoying the outdoors are reminded to stay protected during the peak hours to avoid harmful UV exposure.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variations, with the highest levels occurring from February through September. During these months, particularly from March to June, the index reaches an extreme level of 14. This indicates a high risk for sunburn, with a minimal exposure burn time of just 10 minutes. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing protective clothing, applying high-SPF sunscreen, and seeking shade during peak sun hours. As the year progresses into October and returns to November and December, the UV Index decreases to 12 and 10, respectively, still presenting a very high risk, but with slightly longer burn times of 10 to 15 minutes. Awareness and protection remain crucial, even in the cooler months.
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 |
| Jose Maria Morelos y Pavon | 10 | 12 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 12 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |