Last updated: June 2, 2025
Understanding the UV Index is crucial for the residents and visitors of Capitan Felipe Castellanos Diaz (San Pedro), where the sun's rays can present significant health risks. With the region's As climate, the UV exposure levels can soar, particularly around midday when the index peaks at a striking 13—a warning that should not be taken lightly. Being aware of UV levels is essential for preventing sunburn and promoting long-term skin health. Whether you are enjoying the outdoors or simply commuting, knowing how to protect yourself from harmful rays will help keep your skin safe and healthy throughout the day. Stay informed and stay protected!
The UV Index throughout the day reveals a dramatic shift in sun exposure, peaking at 12:00 PM with an intense 12, signaling the need for sun protection. As the day warms up, 9:00 AM starts with a mild 3, but by 11:00 AM, it surges to a striking 10, indicating high risk for unprotected skin. The highest point arrives at 1:00 PM with a peak of 13, where UV rays are at their strongest. As the afternoon progresses, the index gradually declines, settling back to a comfortable 3 by 5:00 PM and dropping to 1 as evening approaches. It's essential to be mindful of this UV fluctuation, especially during peak hours!
| 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 | 12 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant variations throughout the year, reaching its peak during the spring and summer months. From January to April, the UV levels start at 9 and escalate to 14 by April, indicating an extreme exposure category with a rapid decrease in burn time to just 10 minutes. This high-risk period continues through May to October, where the UV Index remains at 12 to 13, maintaining the extreme classification and a burn time of 10 minutes. In November and December, the UV Index decreases to 9 and 8 respectively, categorized as very high, with burn times extending to 15 minutes. Visitors and residents should take proactive measures, especially from February to October, by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize the risk of sunburn and long-term skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capitan Felipe Castellanos Diaz (San Pedro) | 9 | 11 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 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 |