Last updated: August 1, 2025
In San Andres, Mexico, being aware of the UV Index is crucial for ensuring skin health and preventing sunburn, as the region’s climate can expose residents and visitors to dangerously high levels of ultraviolet radiation, especially during midday hours. Understanding UV levels helps individuals take proactive measures to protect themselves from harmful sun exposure, which can lead to long-term consequences like skin cancer and premature aging. With a tropical climate characterized by intense sunlight, San Andres typically experiences some of the highest UV indices around noon, peaking at 12 from 1 PM to 2 PM. Staying informed about these levels enables everyone to enjoy the sun safely while making the most of their time in this beautiful coastal paradise.
Today’s UV Index presents a dynamic range of sunlight exposure, peaking dramatically during midday hours. Starting low at 1 around 07:00 and 08:00, the index begins to rise steadily, hitting 3 by 09:00. As the clock strikes 10:00, it surges to 6, but it’s the hours from 11:00 to 13:00 where caution is urged, peaking at a scorching 12 at 13:00. After this zenith, UV levels gradually decline, dropping to 9 at 15:00 and settling down to 1 by 18:00. Be sure to protect your skin during those high-index hours, particularly from 11:00 to 14:00 when UV radiation is at its most intense!
| 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 | 11 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 11 | extreme | 10 min |
| 15:00 | 9 | very high | 15 min |
| 16:00 | 6 | high | 25 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, highlighting the importance of sun safety for both visitors and residents. The high-risk months for UV exposure are February to October, where the UV Index reaches its peak at 13 in April and May, indicating an extreme exposure category with a burn time as short as 10 minutes. Even in November, the UV Index remains at a very high level of 8, necessitating caution. To mitigate the risks of overexposure, it is essential to seek shade, wear protective clothing, and apply sunscreen, especially during these peak months when the potential for skin damage is greatest. Remember, while January and December show lower UV levels, maintaining sun safety habits year-round is advisable.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| San Andres | 7 | 10 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 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 |