Last updated: August 1, 2025
Understanding the UV Index is essential for residents and visitors in Santander Jimenez, Mexico, where the sun can be both a source of warmth and a health risk. Awareness of UV levels is crucial for preventing sunburn and maintaining skin health, as exposure to high UV radiation can lead to long-term damage. Given Santander Jimenez's BSh climate, characterized by its warm and sunny weather, being mindful of the varying UV levels throughout the day—from a moderate 2 in the morning to a peak of 12 in the afternoon—is vital for protecting yourself against harmful rays. Stay informed and enjoy the beautiful sun safely!
The UVI hourly data presents an intriguing daily journey of sun exposure. Starting off gently at 07:00 and 08:00 with a UV Index of 1, the day begins in a low risk zone. As the sun climbs higher, 09:00 shows a slight increase to 2, paving the way for more significant highs. By 10:00, it escalates to 5, but the real peak arrives between 12:00 and 13:00, where the UV Index reaches 10 and a blistering 12, signaling the need for sun protection. As afternoon transitions to evening, a gradual decline occurs—15:00 registers 11, followed by a drop to 5 at 17:00, and finally retreating to 2 by 18:00 and 1 by 19:00. This data beautifully illustrates a vital reminder: although the sun gifts us warmth and light, it also demands respect, especially during its most potent hours.
| 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 | 12 | 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 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal UV exposure varies significantly, with the highest risk occurring from March to September when the UV Index consistently remains in the extreme category (11-12). During these months, the burn time is notably short, at just 10 minutes, meaning that protective measures are crucial. February also marks a high-risk month with a very high UV Index of 9 and a burn time of 15 minutes. As the seasons change, UV exposure decreases, with October and November presenting very high conditions (8-10) but longer burn times of 15 minutes. By December and January, the UV Index falls to 6-7 and the burn time increases to 25 minutes. Visitors and residents should take precautions, such as wearing sunscreen and protective clothing, especially during the high-risk months to prevent harmful UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santander Jimenez | 7 | 9 | 11 | 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 |