Last updated: July 2, 2025
In Arenal de Alvarez (Arenal de Paco), Mexico, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels helps prevent sunburn and reduces the risk of long-term skin damage associated with excessive sun exposure. With a climate that features high UV exposure, especially during midday, residents and visitors should be particularly mindful of the daily peaks, which reach a dangerously high index of 13 between 1 PM and 2 PM. By staying informed about UV levels, you can take the necessary precautions to enjoy the sun safely while protecting your skin from harmful rays.
The UV Index throughout the day showcases a dynamic shift in sun intensity. Starting at a low 0 at 7:00 AM, the index gradually climbs, reaching a moderate 2 by 9:00 AM. However, the sun's strength peaks dramatically at 13 between 1:00 PM and 2:00 PM, indicating a very HIGH level of UV radiation—ideal conditions for seeking shade or applying sunscreen. As the afternoon winds down, the index dips to a more manageable 5 by 5:00 PM, and finally settles at 1 by 7:00 PM. For sun seekers, midday offers the most intensity, so planning outdoor activities accordingly can help ensure both enjoyment and safety!
| 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 | 8 | very high | 15 min |
| 12:00 | 11 | extreme | 10 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 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
The seasonal UV changes indicate that from January to October, the UV Index remains consistently high, with several months categorized as extreme. The most critical months for UV exposure are February through October, where the UV Index peaks at 14 in April and June. **Burn times are notably short, often just 10 minutes, underscoring the necessity for caution. As November and December roll around, the UV Index gradually declines, but remains in the very high category, with burn times extending to 15 minutes. Visitors and residents should take proactive measures during high-risk months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours to minimize their risk of sunburn and long-term skin damage.
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 |
| Arenal de Alvarez (Arenal de Paco) | 10 | 11 | 13 | 14 | 13 | 14 | 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 |