Last updated: May 3, 2025
In Reforma, Mexico, staying aware of the UV Index is crucial for safeguarding your skin health and preventing sunburn. Understanding UV levels not only helps in making informed decisions about sun exposure but also plays a vital role in reducing the risk of skin damage, especially in a region with a predominantly dry and sunny climate. With peak UV Index values reaching a staggering 14 around midday, it’s essential for residents and visitors alike to take proactive measures. Whether you’re enjoying outdoor activities or simply soaking in the sunshine, being mindful of UV exposure can help you maintain healthy skin and enjoy the beautiful Reforma sunshine safely.
The UV Index (UVI) shows a dramatic rise as the day unfolds, starting from a mild 1 at 07:00 and 08:00. By 09:00, it escalates to 3, marking the beginning of significant sun exposure. The peak occurs at 13:00, where the UVI reaches a striking 14, indicating extreme risk of harm from unprotected sun exposure. As the afternoon progresses, the intensity begins to wane, dropping to 10 by 15:00 and further declining to 4 by 17:00. Finally, as the sun sets, the UVI returns to a safe 1 at both 18:00 and 19:00. This data underscores the importance of sun protection, particularly during the peak hours from 11:00 to 15:00, where the UV risks are at their highest.
| 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 | 6 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index shows significant seasonal changes, particularly peaking during the late spring and summer months. From February to September, the region experiences extreme UV exposure, with indexes reaching as high as 14 in June. The highest-risk months for UV exposure are typically March through September, where the burn time is reduced to as little as 10 minutes. In contrast, January, November, and December present a lower risk, categorized as very high, with a slightly longer burn time of 15 minutes. Visitors and residents are advised to take precautions during the high-risk months, including wearing protective clothing, using sunscreen with a high SPF, and seeking shade, especially during peak hours between 10 AM and 4 PM. Proper sun safety measures are crucial to avoid sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reforma | 9 | 11 | 12 | 13 | 13 | 14 | 13 | 13 | 12 | 11 | 9 | 8 |
| 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 |