Last updated: June 2, 2025
In San Luis de Custique, Mexico, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels is essential, especially during peak hours when the index can soar to 13 or even 14—a significant risk for skin damage. Nestled in a BSk climate zone, this region experiences intense sun exposure, making it vital for residents and visitors alike to monitor UV ratings throughout the day. By knowing when to seek shade and apply sunscreen, you can enjoy the beautiful sunny days while protecting your skin from harmful UV radiation.
The UV Index for the day paints a vivid picture of solar intensity. Starting off at 0 at 07:00, the sun gradually warms up, hitting 2 by 09:00. As the clock strikes 10:00, the index surges to a notable 5, marking the beginning of peak sun exposure. Things heat up significantly by 11:00, peaking at an impressive 14 by 14:00—the zenith of UV intensity. After this, a gentle decline begins, with the index easing to 12 at 15:00 and tapering off to 6 by 17:00. As the day winds down, the UV Index further drops to 3 by 18:00 and concludes with a 1 at 19:00—a gentle reminder to enjoy the sun wisely!
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 | 5 | moderate | 30 min |
11:00 | 8 | very high | 15 min |
12:00 | 11 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 14 | extreme | 10 min |
15:00 | 12 | extreme | 10 min |
16:00 | 10 | very high | 15 min |
17:00 | 6 | high | 25 min |
18:00 | 3 | moderate | 30 min |
19:00 | 1 | low | 45 min |
The UV Index demonstrates significant seasonal changes, peaking during the late spring and summer months. From January to March, the index starts high but quickly escalates, reaching its maximum of 15 in both April and May. The months of February to October pose the highest risk, with an extreme exposure category, where the burn time is notably short at 10 minutes. Visitors and residents should be particularly vigilant during these high-risk months, especially from February to October, and adopt protective measures such as wearing sunscreen, hats, and protective clothing. As we approach the fall and winter months, the UV risk decreases but remains notably high in November and December. It is essential to stay informed and protect your skin 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 |
San Luis de Custique | 9 | 11 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 12 | 10 | 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 |