Last updated: July 2, 2025
In Bellas Fuentes (Nuevo Centro), Mexico, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With its Aw climate, residents and visitors alike are exposed to intense sunlight, particularly during midday hours when UV levels can peak at 13. This high UV exposure underscores the importance of monitoring daily UV levels to safeguard against harmful effects like skin damage and increased risk of skin cancer. By staying informed about the UV Index, you can take proactive steps to protect yourself and enjoy the vibrant outdoor lifestyle that Bellas Fuentes offers.
The UV index throughout the day reveals a dynamic pattern, starting from a low 0 at 7:00 AM and gradually climbing as the sun rises. By 10:00 AM, it reaches 4, signaling the start of potential sun sensitivity. As noon approaches, the intensity peaks dramatically at 12:00 PM with a UV index of 10, which is considered very high, urging outdoor enthusiasts to take protective measures. The afternoon hours continue to show significant UV levels, with a maximum of 13 at 1:00 PM and 2:00 PM, before slowly tapering off in the later afternoon and evening, dropping back to 1 by 7:00 PM. This data emphasizes the importance of sun safety, especially during the midday hours when UV exposure poses the greatest risk.
| 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 | 10 | very high | 15 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 6 | high | 25 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV index levels exhibit significant variability, indicating the strongest solar radiation during the spring and summer months. From March to October, the UV Index frequently reaches extreme levels, particularly peaking at 14 in June, with a burn time of just 10 minutes. The high-risk months for UV exposure are March through October, with March, April, May, June, July, August, and September classified as having an extreme exposure category. Residents and visitors are advised to take precautionary measures during these months, including wearing sunscreen, protective clothing, and sunglasses, and limiting time spent in direct sunlight during peak hours to avoid serious sunburn and long-term skin damage. Conversely, the winter months, particularly November and December, bring lower UV levels of 9 and 8, respectively, where the risk reduces to a very high category, allowing for more outdoor activities with less concern for UV exposure.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bellas Fuentes (Nuevo Centro) | 9 | 10 | 13 | 13 | 13 | 14 | 13 | 12 | 13 | 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 |