Last updated: July 2, 2025
In San Jose del Valle, Mexico, staying aware of the UV Index is essential for protecting your skin from harmful rays. Understanding UV levels is crucial as it helps prevent sunburn, enhances skin health, and reduces the risk of long-term skin damage. With a warm climate that typically features high UV exposure, especially during midday hours where the index peaks at 12, residents and visitors should take precautions—such as wearing sunscreen and protective clothing—to enjoy the sunshine safely. Always check the UV Index to make informed choices about outdoor activities and safeguard your skin health!
As the sun rose at 07:00, the UV Index was a serene 0, offering a safe start to the day. However, as time progressed, the index steadily climbed. By 08:00, it nudged up to 1, followed by a gradual increase reaching 2 at 09:00. The real intensity kicked in by 11:00, where the index hit 6, peaking at a formidable 12 from 13:00 to 15:00—the hours when sun protection became essential. As the afternoon waned, the UV Index began to retreat, dropping to 9 at 16:00, and finally winding down to 3 by 18:00. An awareness of these shifts not only enhances outdoor enjoyment but ensures safety in the sun's embrace as the day unfolds.
| 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 | 3 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 12 | 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 |
The UV Index exhibits significant seasonal variation, with the highest levels occurring from March to October, where exposure categories reach extreme status. March through August sees consistently high UV Index ratings of 12-13, resulting in a minimal burn time of just 10 minutes. Visitors and residents should be particularly cautious during these months, as the risk of sunburn is substantial. January and February also pose a risk with UV Index values near 10, categorized as very high, leading to a burn time of 15 minutes. As the seasons transition into November and December, the UV Index drops, but care should still be exercised. November has a UV Index of 9 (very high) with a burn time of 15 minutes, and December sees a further decrease to 7 (high), allowing for a slightly longer burn time of 25 minutes. To ensure safety, it is advisable to wear sunscreen, seek shade, and wear protective clothing during the high-risk months, especially from March to October when sun exposure can lead to serious skin damage in a short amount of time.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Jose del Valle | 8 | 10 | 12 | 13 | 13 | 13 | 12 | 13 | 12 | 11 | 9 | 7 |
| 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 |