Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors in San Jose de la Brecha, Mexico, where sun exposure can vary significantly throughout the day. In this picturesque locale, being aware of UV levels is not just about avoiding sunburn; it's vital for protecting skin health and reducing long-term risks of skin cancer. With a climate that leads to high UV readings—peaking at an intense 12 around noon—it's essential to know when to seek shade and apply sunscreen to minimize harm. Stay informed and enjoy the sunshine safely in this beautiful region!
As the sun rises, the UV Index starts off low at a manageable 1 from 07:00 to 08:00. However, things heat up quickly as we move into the late morning; by 10:00, it spikes to 5, reaching 8 at 11:00. The peak intensity occurs at 12:00, with an impressive index of 11, closely followed by 12 at 13:00 and 14:00—the sun is at its strongest! A gradual decrease follows, dropping to 10 by 15:00 and continuing down to 4 at 17:00. As the day winds down, the index relaxes further to 2 at 18:00 and returns to a safe 1 by 19:00. It's clear that today's UV risk peaks around midday, so remember to stay protected during those exposed hours!
| 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 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 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 experiences significant seasonal changes, peaking during the summer months. High-risk months include February to September, with the months of April through September classified as having an extreme exposure category and a consistent UV Index of 12, where burn time is as little as 10 minutes. Visitors and residents are strongly advised to take precautions during these months, including wearing sunscreen with high SPF, protective clothing, and seeking shade during peak hours to reduce UV exposure. The UV Index begins to reduce in October, with a drop to 10 and remaining very high through November. By December and January, the exposure level returns to high, allowing for a longer burn time of 25 minutes. Staying aware of these variations is crucial for maintaining skin health throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Jose de la Brecha | 6 | 9 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 10 | 8 | 6 |
| 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 |