Last updated: August 1, 2025
Understanding the UV Index in Milpillas de la Sierra, Mexico, is crucial for maintaining your skin's health and preventing sunburn. With an impressive UV Index peaking at 14 during midday hours, residents and visitors alike must be vigilant about sun exposure, particularly given the region's dry, semi-arid climate (BSk) which can amplify UV radiation risks. Being aware of UV levels allows you to take informed precautions, ensuring enjoyable outdoor activities while safeguarding your skin from harmful effects. Stay protected and enjoy the beautiful sunshine in Milpillas de la Sierra!
At dawn, the UV Index starts off quietly at 0 by 7:00 AM, gradually rising to 1 by 8:00 AM. The sun's strength begins to surface by 9:00 AM reaching 2, but it’s not until 10:00 AM that things really heat up, with the index soaring to 5. The peak of the day hits at 12:00 PM, with an intense 11, and it continues to climb, peaking at 14 by 1:00 PM and again at 2:00 PM. As the afternoon unfolds, this intensity wanes, dipping to 13 by 3:00 PM, before gracefully descending to 10 by 4:00 PM. The UV levels decline further to 7 at 5:00 PM and down to 4 by 6:00 PM, finally retreating back to 1 by 7:00 PM. Make sure to protect your skin during those peak hours!
| 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 | 7 | high | 25 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 13 | extreme | 10 min |
| 16:00 | 10 | very high | 15 min |
| 17:00 | 7 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the spring and summer months. From January to March, the UV Index rises from 8 (very high) to 13 (extreme), leading into an intense period from April to October where the index remains at 14-15 (extreme) for most months, indicating a critical need for sun protection. February and March are particularly high-risk, with an extreme UV Index of 11 and 13, while the months of April and May reach their peak at 15, contributing to a burn time of just 10 minutes. As the summer wanes, the index gradually decreases to 13 in October, followed by a drop to 10 in November and returning to 8 in December (both categorized as very high). It is crucial for visitors and residents to prioritize sun safety during these high-risk months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during midday hours when UV exposure is the highest.
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 |
| Milpillas de la Sierra | 8 | 11 | 13 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 10 | 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 |