Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of San Jose las Palmas, Mexico, where sun exposure can be intense due to its tropical climate. With UV levels typically peaking at 15 during midday, awareness of these radiation levels is key to preventing sunburn and maintaining long-term skin health. By understanding the significance of varying UV Index readings throughout the day, you can better protect yourself and enjoy the sunny weather safely. As you plan your activities, keep an eye on the UV Index to ensure you're taking the necessary precautions against harmful exposure, especially during the midday hours when the risk is higher.
As the sun rises, the UV Index starts off low, peaking at 1 from 7:00 AM to 9:00 AM. However, by 10:00 AM, it takes a noticeable leap to 7, signaling stronger rays. The intensity continues to rise, reaching its zenith at 12:00 PM with a staggering 14, and then hitting its peak at 1:00 PM at 15—a clear reminder to seek shade and protect your skin. The index gradually declines throughout the afternoon, dropping to 11 by 3:00 PM, and easing into the evening with values of 4 at 5:00 PM, 2 by 6:00 PM, and reverting back to 1 by 7:00 PM. Be mindful of the sun during peak hours, especially between 10:00 AM and 2:00 PM, when the UV exposure is at its maximum!
| 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 | 11 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 14 | 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 |
Throughout the year, the UV Index in this region exhibits significant seasonal changes, with high-risk months predominantly from January to October. Notably, from March to June, the UV Index peaks at 15, categorized as extreme, signifying that unprotected skin can burn in as little as 10 minutes. February and March see the highest readings—reaching 13 and 15, respectively—while August and September maintain a high index at 14. As a result, it is crucial for visitors and residents to take adequate precautions during these months, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when UV exposure is most intense. In contrast, while December presents a slightly lower risk with a UV Index of 10, it is still advisable to remain vigilant.
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 |
| San Jose las Palmas | 11 | 13 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 11 | 10 |