Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Quetchehueca, Mexico, a region with a BSh climate that offers abundant sunshine throughout the year. Being aware of UV levels helps you take proactive measures against sunburn and supports long-term skin health. With peak UV Index values soaring to 12 around noon, the risk of skin damage is significant, making it essential to know when the sun is strongest. As you navigate the beautiful landscapes of Quetchehueca, understanding your UV exposure can help ensure your outdoor adventures are not only enjoyable but also safe.
At dawn, the UV Index starts low at 1 by 7:00 AM, providing a gentle reminder of the sun's presence. As the morning progresses, the index climbs to 3 by 8:00 AM, and then peaks at 12 around noon, signaling intense sun activity. The sun's rays are strongest at 11:00 AM with a maximum of 10, making it crucial to protect your skin during this time. Though the UV Index begins to decline after midday, it remains significant at 11:00 AM and 9 by 2:00 PM. By the late afternoon, the numbers drop to 4 at 4:00 PM and further descend to 1 by 6:00 PM. Plan your sun exposure wisely, taking care to avoid the peak hours when protection is vital!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 9 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 4 | moderate | 30 min |
| 17:00 | 2 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant seasonal changes, highlighting the importance of sun safety for both visitors and residents. From January to May, the UV levels start at a high index of 6 and escalate to an extreme 12 by April and May, indicating a critical burn time of just 10 minutes during these months. The pattern continues into the summer, with June to September maintaining the extreme UV Index of 12, presenting high risk for sunburn. As fall approaches, the UV Index gradually tapers off, dropping to 9 in October and then to 7 in November, before reaching a moderate 5 in December, where the burn time increases to 30 minutes. Thus, the highest risk months for UV exposure are April through September, where precautions should be taken seriously. Residents and visitors are strongly advised to wear protective clothing, apply sunscreen regularly, and limit sun exposure during peak hours, particularly in late spring and summer.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quetchehueca | 6 | 8 | 10 | 12 | 12 | 12 | 11 | 12 | 12 | 9 | 7 | 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 |