Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of San Juan Jicayan, Mexico, where the warm Aw climate contributes to high sun exposure risks. Awareness of UV levels not only helps in preventing sunburn but also plays a significant role in maintaining overall skin health. With peak UV Index values reaching a staggering 14 during midday hours, it's essential to be vigilant about sun safety practices to protect your skin while enjoying the beautiful outdoors. By keeping track of UV Index fluctuations, you can revel in the sun-soaked vistas of San Juan Jicayan while minimizing the risks associated with excessive UV exposure.
The UV Index displays a dynamic pattern throughout the day, starting off low at 1 during the early hours of 07:00 and 08:00. As the sun rises higher, the intensity escalates rapidly, peaking at a striking 14 between 13:00 and 14:00. This marks the period of greatest sun exposure, urging everyone to take precautions against skin damage. Following this peak, the index begins its descent, dropping to 11 by 15:00, and further declining to 2 by 18:00. Ultimately, it returns to a mild 1 at 19:00, signaling a safe end to a day filled with varying levels of UV radiation. Stay vigilant during those peak 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 | 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 | 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 Jicayan | 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 |