Last updated: June 2, 2025
Understanding the UV Index in San Juan Yosocani, Mexico, is crucial for protecting your skin and overall health. With the region's climate classified as Aw, residents and visitors alike are often exposed to varying UV levels throughout the day, particularly peaking between 11:00 AM and 1:00 PM, when the UV Index can reach a dangerous 12 to 14. Knowing how to interpret these levels is essential for preventing sunburn and minimizing long-term skin damage. Stay informed and take the necessary precautions to enjoy the sunny days safely in this vibrant town!
The UV Index data for the day reveals a significant rise in sun exposure as the hours progress. Starting at 07:00 AM with a low index of 1, the intensity gradually increases, reaching 2 by 09:00 AM. However, the true peak occurs between 10:00 AM and 02:00 PM, where values soar to a staggering 12 at 12:00 PM and peak at 14 by 01:00 PM. As the afternoon wanes, the index begins to decline to 8 at 04:00 PM, before dropping to 2 by 06:00 PM and returning to a safe 1 by 07:00 PM. This data underscores the importance of protecting your skin during those midday hours when the UV radiation is strongest. Don't forget your sunscreen!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Seasonal variations in UV exposure highlight significant changes throughout the year, particularly from January to October, when the UV Index reaches its peak. The highest risk months are March to June, characterized as extreme with a UV Index of 13 to 14 and a burn time of just 10 minutes. As visitors and residents engage in outdoor activities during these months, it is crucial to take protective measures, such as applying sunscreen, wearing protective clothing, and seeking shade during midday hours. Conversely, November and December see a drop in the UV Index to 9 and 8, respectively, reflecting a transition back to a very high exposure category; however, vigilance remains important as burn times extend to 15 minutes. This seasonal UV landscape serves as a reminder to stay informed and proactively protect skin health throughout the year.
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 Juan Yosocani | 10 | 12 | 13 | 14 | 14 | 14 | 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 |