Last updated: August 1, 2025
In San Agustin Ostotipan, Mexico, understanding the UV Index is crucial for protecting your skin against the harmful effects of sun exposure. With a tropical climate that experiences significant UV levels throughout the day, knowing when the sun's rays are most intense can help you prevent sunburn and maintain long-term skin health. During peak hours, particularly between 11:00 AM and 2:00 PM, the UV Index can reach extreme levels—peaking at 14—making awareness essential for outdoor activities. By staying informed about UV exposure risks, residents and visitors can enjoy the sun safely while safeguarding their skin from potential damage.
The UV Index today shows a dramatic rise in solar intensity as the day progresses. Starting from a mild 0 at 7:00 AM, it gently increases to 1 by 8:00 AM. But as the clock strikes 10:00 AM, the index skyrockets to 5, reaching a peak of 14 by 1:00 PM and holding steady until 2:00 PM. The afternoon brings a noticeable decline, dropping to 12 at 3:00 PM and gradually tapering off to 5 by 5:00 PM. By 6:00 PM, the UV levels fall to 3, finally settling at a safe 1 as the sun begins to set at 7:00 PM. Be cautious during peak hours when the UV Index soars—a perfect reminder to protect your skin!
| 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 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels exhibit significant seasonal variations, peaking during the summer months. January starts with a UV Index of 10, indicating a very high exposure category with a burn time of 15 minutes. However, from February to September, the UV Index remains at 11 to 14, staying within the extreme category and reducing the burn time to just 10 minutes. Notably, March through September marks the highest risk months for UV exposure, urging both visitors and residents to take precautions, such as wearing sunscreen and protective clothing. As October approaches, the UV Index slightly decreases to 12, maintaining an extreme warning, before transitioning into November and December, where it drops to a very high level of 9 and 8, respectively, with extended burn times of 15 minutes. To ensure safety, it is critical to remain vigilant about UV exposure, particularly during these peak 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 |
| San Agustin Ostotipan | 10 | 11 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 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 |