Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Santiago Quiavicuzas, Mexico, where the sun shines intensely throughout the year. With UV levels peaking at 14 during midday hours, awareness of these values helps protect against sunburn and long-term skin health risks. As a part of the Aw climate zone, Santiago Quiavicuzas experiences high UV exposure, particularly from 10:00 AM to 3:00 PM when the sun’s rays are strongest. By staying informed about the UV Index, you can take proactive measures to shield your skin and enjoy the beautiful outdoors safely.
Throughout the day, the UV Index displays a striking ascent, peaking at an impressive 14 between 1:00 PM and 2:00 PM. Starting from a low of 1 at 7:00 AM and 8:00 AM, the intensity gradually rises, reaching a moderate 3 by 9:00 AM. As the sun climbs higher, the index skyrockets, hitting 9 at 11:00 AM, and then ascending to its apex of 13 just before noon. By 1:00 PM, with the sun fully overhead, it maxes out at 14, before a gradual decline sets in. The afternoon sees a decrease to 12 by 3:00 PM, then slipping to 5 by 5:00 PM. As the day winds down, the UV Index returns to a manageable 2 by 6:00 PM, finally settling back at 1 by 7:00 PM. This variation highlights the importance of sun safety as midday approaches!
| 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 | 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 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variations, peaking from March through September with values consistently at 13-14, classified as extreme exposure. The highest risk months are from February to September, where the burn time is notably reduced to just 10 minutes. As we move into the tail end of the year, October sees a slight decrease to an index of 12, followed by November and December, which drop to 10 and 9, respectively, categorized as very high with a longer 15-minute burn time. It is crucial for both visitors and residents to take appropriate precautions during the high UV months by applying sunscreen, wearing protective clothing, and seeking shade during peak hours to minimize the 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 |
| Santiago Quiavicuzas | 10 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 14 | 12 | 10 | 9 |
| 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 |