Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of San Salvador El Seco, Mexico, where the climate can significantly impact your sun exposure. As the sun reaches its peak intensity with a maximum UV Index of 15 between 1:00 PM and 2:00 PM, awareness of UV levels is vital not only for sunburn prevention but also for long-term skin health. In this Cwb climate zone, where warm temperatures are often accompanied by clear skies, knowing when to seek shade or apply sunscreen can help you protect your skin from harmful ultraviolet radiation. Stay informed and enjoy the sun safely!
As the sun rises, the UV Index gradually increases, starting from a gentle 1 at 07:00. By 09:00, it climbs to 3, signaling the beginning of a more intense day. The real peak occurs between 12:00 and 14:00, where the UV Index soars to a striking 15—a strong reminder to stay protected from the sun. Following this peak, the intensity gradually decreases, settling back to 6 by 17:00 and tapering off further to 1 by 19:00. For those enjoying outdoor activities, it's crucial to heed the UV levels, particularly during midday when sun protection is most vital. Stay safe in the sun! 🌞
| 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 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The seasonal UV changes indicate that residents and visitors should be especially cautious from February through October, where the UV Index consistently reaches extreme levels of 13 to 15, implying a burn time as short as 10 minutes. The high-risk months for UV exposure include March through September, where the UV Index remains at 15 for the longest stretch. As such, individuals are strongly advised to protect their skin during these months by wearing appropriate clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours. In contrast, January and December present slightly lower risks with a UV Index of 10 and 9, providing a bit more leeway, though protection is still essential. Seasonal awareness of UV levels ensures healthier and safer outdoor experiences for everyone.
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 |
| 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 |
| San Salvador El Seco | 10 | 13 | 15 | 15 | 15 | 15 | 15 | 14 | 15 | 13 | 11 | 9 |