Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of San Vicente, Mexico, where the desert climate (BSk) can lead to intense sun exposure throughout the year. Being aware of UV levels helps in planning outdoor activities and is essential for preventing sunburn and maintaining long-term skin health. With peak UV Index readings soaring to 12 between noon and 1 PM, it's vital to take precautions during these hours to shield yourself from harmful rays, especially in a region known for its vibrant sunshine. Stay informed and protect your skin to enjoy all that San Vicente has to offer!
The UV Index throughout the day showcases a striking pattern, peaking at an impressive 12 by 1 PM. Beginning with a gentle start of 1 at 7 AM, the index steadily climbs, hitting 10 by 11 AM and reaching its zenith at 12 during the warmest hour. As the afternoon progresses, a decline occurs, with the index tapering off to 8 at 3 PM, and gradually dropping to 1 by 6 PM. This indicates that the highest UV exposure is between 11 AM and 1 PM, urging outdoor enthusiasts to take precautions during these hours.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 8 | very high | 15 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
As the seasons change, the UV Index displays significant fluctuations, highlighting the importance of sun safety. January starts with a moderate UV Index of 5, but by February, it escalates to 7 (high), indicating a shift towards more harmful sun exposure. The risk peaks from March to August, where the index reaches extreme levels of 11 to 12, significantly reducing the safe burn time to just 10 minutes. September and October still portray high risks with UV indices of 10 and 8, respectively. Visitors and residents are advised to exercise caution during these high-risk months, particularly from March to August, by wearing protective clothing, applying sunscreen regularly, and seeking shade to minimize potential skin damage. By November and December, UV levels drop back to moderate, offering a reprieve as the burn times extend to 30 minutes. Stay vigilant and proactive about UV safety all year round!
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Vicente | 5 | 7 | 9 | 11 | 11 | 12 | 12 | 11 | 10 | 8 | 5 | 4 |
| 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 |