Last updated: June 2, 2025
In Nuevo Santo Tomas, Mexico, awareness of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels is essential not just for sunburn prevention but also for reducing the risk of long-term skin damage and conditions such as skin cancer. With a climate characterized by a Cwb classification, the area experiences significant UV exposure, particularly around midday when levels peak at a high of 14. Being informed about UV Index readings helps residents and visitors make better decisions about sun protection, ensuring they can enjoy the beautiful outdoors safely.
At dawn, the UV Index begins its day at a gentle 1, providing a safe start for early risers. As the sun climbs higher, 09:00 marks the emergence of a more moderate 4, gradually prepping the skin for what's to come. By 10:00, the intensity peaks significantly to 7, prompting a reminder for sun protection. The true zenith occurs around 12:00 when the index reaches a blazing 13, peaking further at 13:00 with an intense 14. As the afternoon unravels, the index starts to wane—by 15:00 it’s down to 10, and later drops to 7 by 16:00. As the day transitions into evening, the UV levels ease back down to 1 by 18:00, granting a soothing conclusion to a sun-soaked day. Always remember to protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index demonstrates significant seasonal variability, with peak levels occurring from February to October, where an extreme rating (UV Index 12-14) is prevalent for most months. January and November feature a very high exposure category, while December sees a slight decrease. March through October are particularly concerning, as these months also have the shortest burn time of only 10 minutes. Visitors and residents should exercise caution during these high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during peak sunlight hours to minimize the risk of UV-related skin damage. Remember, even on cloudy days, UV rays can still cause harm, so stay vigilant year-round.
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 |
| Nuevo Santo Tomas | 10 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |