Last updated: July 2, 2025
In Santa Rosa Treinta, Mexico, being aware of the UV Index is crucial for protecting your skin from harmful radiation that can lead to sunburn and long-term health issues. With the typical climate characterized by plenty of sunshine, understanding UV levels allows residents and visitors alike to take appropriate precautions during peak exposure times, particularly when the index reaches its highest at 12 PM and 1 PM, peaking at level 14. As the sun's intensity varies throughout the day, staying informed helps ensure you enjoy your time outdoors safely while maintaining good skin health.
The UV Index throughout the day showcased a striking pattern, beginning with a negligible level of 0 at 07:00. As the sun rose, the intensity gradually increased, reaching a modest 1 at 08:00 and climbing to 2 by 09:00. The real surge occurred as the day unfolded, peaking at an intense 14 from 13:00 to 14:00, indicating a high risk of harm from unprotected sun exposure. From this zenith, the index started to decline, dropping to 9 by 16:00 and tapering off to 1 by 19:00. This dynamic progression underscores the importance of sun safety during peak hours, particularly between noon and early afternoon.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | 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 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, seasonal changes in UV Index highlight periods of both low and extreme risk for sun exposure. January and November begin the year with a very high UV Index of 9, allowing for a burn time of 15 minutes. However, as spring approaches, February through October see an escalation into the extreme category, with UV Index values peaking at 14 in April, June, July, August, and September, demanding a burn time of just 10 minutes. The high-risk months for sun exposure are clearly from February to October, when individuals should exercise extra caution and employ protective measures such as sunscreen, hats, and sunglasses. Residents and visitors are advised to remain vigilant during these months to minimize skin damage and ensure safety while enjoying outdoor activities.
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 |
| Santa Rosa Treinta | 9 | 12 | 13 | 14 | 13 | 14 | 14 | 13 | 14 | 11 | 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 |