Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Jimenez, Mexico. With its semi-arid climate (BSh), the sun can pose significant risks of overexposure, especially during peak hours. Knowledge of UV levels can help prevent painful sunburns and protect skin health in the long term. As you navigate through daily activities, note that from 10 AM to 4 PM, the UV Index frequently reaches high levels, peaking at 12 between 1 PM and 2 PM—a reminder to stay vigilant about sun safety, wear protective clothing, and apply sunscreen to enjoy the sun responsibly.
Throughout the day, the UV Index experiences a remarkable ascent and subsequent descent, reflecting the sun's peak intensity. Starting at a gentle 1 in the early hours of 07:00 and 08:00, the index gradually climbs to reach a moderate level of 2 by 09:00. However, it escalates dramatically at 10:00, spiking to 4, and by 11:00, the sun's rays are striking with a powerful force, resulting in a significant 7. The apex occurs at 12:00, hitting a striking 10, and shortly after, it peaks at 11 by 13:00 before achieving its highest mark of 12 at 14:00. As the afternoon progresses, there’s a noticeable decrease, with the index descending to 11 at 15:00, and continuing to decline to 5 by 17:00. By evening, it gently tapers off to 3 at 18:00 and finishes the day at a comfortable 1 by 19:00. With such fluctuations, it’s essential to stay protected during the midday hours when the sun is at its strongest!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variation, with the highest levels typically occurring from April to September. During these months, the UV Index reaches extremes of 11 to 12, categorizing them as extreme exposure. February through October are considered high-risk months, especially April to August, where the burn time is as short as 10 minutes. It is vital for residents and visitors to take precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours to minimize the risk of skin damage. As the UV Index decreases in the fall and winter months, November and December present lower risk, with more moderate values of 6 and 5, allowing for longer exposure times before burning occurs. Adjusting outdoor activities according to the UV index is essential for ensuring safety and health throughout the year.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jimenez | 5 | 8 | 9 | 11 | 11 | 12 | 12 | 12 | 11 | 9 | 6 | 5 |
| 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 |