Last updated: July 2, 2025
Understanding the UV Index in San Francisco de Rivas, Mexico, is essential for protecting your skin from harmful ultraviolet radiation. With the region's Csb climate, characterized by mild temperatures and plenty of sunshine, awareness of UV levels is crucial to prevent sunburn and maintain skin health. During mid-day hours, the UV Index can soar to dangerous levels—reaching a peak of 13 at 1 PM—making it vital for residents and visitors alike to monitor these levels. Stay informed, take precautions, and enjoy the beautiful weather while safeguarding your well-being!
The UV index throughout the day reveals a dynamic pattern, starting from a low 0 at 7:00 AM and gradually climbing as the sun rises. By 10:00 AM, it reaches 4, signaling the start of potential sun sensitivity. As noon approaches, the intensity peaks dramatically at 12:00 PM with a UV index of 10, which is considered very high, urging outdoor enthusiasts to take protective measures. The afternoon hours continue to show significant UV levels, with a maximum of 13 at 1:00 PM and 2:00 PM, before slowly tapering off in the later afternoon and evening, dropping back to 1 by 7:00 PM. This data emphasizes the importance of sun safety, especially during the midday hours when UV exposure poses the greatest risk.
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 | 4 | moderate | 30 min |
11:00 | 7 | high | 25 min |
12:00 | 10 | very high | 15 min |
13:00 | 13 | extreme | 10 min |
14:00 | 13 | 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 |
Throughout the year, the UV Index exhibits significant seasonal variations, peaking during the spring and summer months. From February through August, the UV Index consistently reaches extreme levels (11-14), with the highest values recorded in March, April, May, and August. Notably, October also remains at an extreme level (12), indicating potential for harmful UV exposure. The high-risk months for UV exposure are thus identified as February through August, where the advised burn time is only 10 minutes. In contrast, January, November, and December present lower UV levels (with indices of 9 and 8), classified as very high, allowing for a slightly longer exposure time of 15 minutes. Visitors and residents are strongly advised to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade during peak UV hours, particularly from late winter through summer.
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 |
San Francisco de Rivas | 9 | 11 | 14 | 14 | 14 | 14 | 13 | 14 | 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 |