Last updated: June 2, 2025
In San Juan la Isla, Mexico, understanding the UV Index is crucial for safeguarding your skin health. The sun's rays can be deceptively strong here, especially during peak hours when the UV Index reaches 14, indicating a very high risk of harm from unprotected sun exposure. Being aware of these levels helps in preventing sunburns and long-term skin damage, making sun safety a priority for both residents and visitors. With its Cwb climate, San Juan la Isla experiences significant UV exposure, particularly from late morning to early afternoon. Stay informed and enjoy the sun responsibly!
The UV Index throughout the day showcases a dynamic rise and fall in sun intensity. Starting off gently, at 7:00 AM, the index registers a low maximum of 1, gradually climbing to 3 by 9:00 AM. The sun's power peaks dramatically at 12:00 PM, reaching a sweltering high of 12, and continues to soar to an intense 14 from 1:00 PM to 2:00 PM. As the afternoon wears on, the index begins to descend, dropping to 9 by 4:00 PM and tapering off to a milder 5 by 5:00 PM. The evening brings a return to cooler levels, with values falling back to 1 by 7:00 PM. It’s a day where protection from the sun is crucial during the midday hours, especially when UV levels are at their peak!
| 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 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 12 | extreme | 10 min |
| 16:00 | 9 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 3 | moderate | 30 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index demonstrates significant seasonal changes, peaking between March and September with values consistently classified as extreme (UV Index 15) and requiring minimal exposure for skin protection. The highest risk months are March, April, May, and September, where the UV Index reaches 15, indicating a burn time of just 10 minutes. Even in January and November, the UV Index remains high at 10, requiring careful sun exposure management. Visitors and residents are advised to take precautions during these high-risk months by wearing sunscreen, protective clothing, and seeking shade to minimize the risk of skin damage. Remember, even on cloudy days, UV radiation can still be intense, so staying vigilant is key.
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 |
| 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 |
| San Juan la Isla | 10 | 12 | 15 | 15 | 15 | 14 | 14 | 14 | 15 | 12 | 10 | 9 |