Last updated: August 1, 2025
In Santa Cruz Vista Alegre, Mexico, being aware of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding UV levels not only helps prevent painful sunburns but also plays a vital role in maintaining long-term skin health. With its Cwb climate, Santa Cruz Vista Alegre experiences significant UV radiation, particularly during midday hours when the index can soar to 15 or more. Staying informed about these levels empowers residents and visitors alike to enjoy the sunny days safely while minimizing the risk of UV-related health issues.
The UV Index fluctuates throughout the day, peaking in the early afternoon. At 07:00, it starts at a safe level of 0, gradually rising to 1 by 08:00. As the sun climbs higher, the index spikes dramatically, reaching 5 by 10:00 and soaring to a striking 12 at noon. The intensity peaks further at 13:00 with a maximum of 14, and then hits a scorching high of 15 at 14:00. As the day progresses, the UV levels begin to taper off; they drop to 13 at 15:00, then decline steadily, hitting 6 by 17:00 and tapering down to 1 by 19:00. These numbers remind us to take care during the midday hours when sun protection is essential!
| 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 | 8 | very high | 15 min |
| 12:00 | 11 | 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 |
During the year, UV exposure varies significantly, with the highest risk occurring from February to October, where the UV Index consistently reaches 12 or higher, classifying it as extreme. Particularly high-risk months include March, April, May, June, July, August, and September, all maintaining an index of 14 or higher, thus posing a burn time of merely 10 minutes. In contrast, January, November, and December exhibit lower, though still very high, UV levels, with burn times stretching to 15 minutes. Residents and visitors are strongly advised to take precautions such as wearing sunscreen, protective clothing, and seeking shade during peak hours, especially in the high-risk months to mitigate the significantly increased risk of 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 |
| Santa Cruz Vista Alegre | 10 | 12 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 12 | 10 | 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 |