Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of San Jeronimo Tulija, Mexico, where the climate typically offers plenty of sunshine. With UV levels peaking as high as 14 during midday, awareness of these numbers can be a game-changer in preventing sunburn and protecting your skin health. This charming locale, characterized by its warm, semi-arid climate, presents specific exposure risks that can impact everyone's well-being. By staying informed about the UV Index, you empower yourself to enjoy the sun safely and effectively manage your outdoor activities throughout the day.
As the day unfolds, the UV Index rises dramatically, peaking in the early afternoon. Starting at a modest 1 at 07:00, it gradually climbs until it reaches a striking 14 by 13:00, marking the height of sun exposure danger. From there, it tapers off, dropping to 10 at 15:00, and continuing to decline to a safer 1 by evening. The notable surge around 12:00 with a maximum of 12 serves as a reminder to stay protected, donning sunscreen and seeking shade during peak hours. Embrace the sunlight wisely!
| 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 | 10 | very high | 15 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 10 | very high | 15 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index experiences significant fluctuations throughout the year, peaking in the late spring and summer months. January starts with a UV Index of 9, categorized as very high, but the intensity quickly escalates, reaching a maximum of 14 during April, June, and July, all classified as extreme. February through October are particularly high-risk months, with UV indices remaining between 12 to 14, necessitating careful sun exposure management. Residents and visitors are advised to take precautions during these high-risk periods, such as wearing sunscreen, protective clothing, and sunglasses, and limiting sun exposure to avoid skin damage. As the year progresses into November and December, the UV Index decreases to 10 and 9, respectively, indicating relatively safer conditions, but vigilance remains essential to maintain skin health 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 Jeronimo Tulija | 9 | 12 | 13 | 14 | 13 | 14 | 14 | 13 | 13 | 12 | 10 | 9 |
| 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 |