Last updated: June 2, 2025
Understanding the UV Index in San Fernando, Mexico, is crucial for protecting your skin under the intense sun. As a city situated in a BSh climate zone, San Fernando experiences high UV levels, particularly during midday, peaking at values of 12 around noon. Awareness of UV levels is vital not just for preventing sunburn but also for safeguarding long-term skin health. With UV exposure risks increasing in the bright, sunny climate of San Fernando, staying informed can help you enjoy the outdoors while minimizing skin damage. Always check the UV Index to ensure you're taking the necessary precautions!
As the sun rises, the UV Index starts off low at a manageable 1 from 07:00 to 08:00. However, things heat up quickly as we move into the late morning; by 10:00, it spikes to 5, reaching 8 at 11:00. The peak intensity occurs at 12:00, with an impressive index of 11, closely followed by 12 at 13:00 and 14:00—the sun is at its strongest! A gradual decrease follows, dropping to 10 by 15:00 and continuing down to 4 at 17:00. As the day winds down, the index relaxes further to 2 at 18:00 and returns to a safe 1 by 19:00. It's clear that today's UV risk peaks around midday, so remember to stay protected during those exposed hours!
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 | 5 | moderate | 30 min |
11:00 | 8 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 12 | extreme | 10 min |
14:00 | 12 | extreme | 10 min |
15:00 | 10 | very high | 15 min |
16:00 | 7 | high | 25 min |
17:00 | 4 | moderate | 30 min |
18:00 | 2 | low | 45 min |
19:00 | 1 | low | 45 min |
As the seasons change, so does the intensity of UV radiation, with the UV Index peaking from March through September. The months of February to September mark a high-risk period where the UV Index reaches extreme levels (11-12), particularly from March to August, indicating a burn time of only 10 minutes. Visitors and residents should remain vigilant during these months, taking precautions such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours to minimize risk of skin damage. As the year transitions into fall and winter, the UV Index gradually decreases, offering a brief respite in December with a high exposure category of 6. Nonetheless, maintaining sun safety practices is advisable year-round.
UV Risk Categories
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
San Fernando | 7 | 9 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 10 | 8 | 6 |
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 |