Last updated: July 2, 2025
In Nueva Rosita, Mexico, understanding the UV Index is crucial for protecting your skin and overall health under the intense sun. With UV levels peaking at 12 around midday, awareness can significantly reduce the risk of sunburn and long-term skin issues. The city's semi-arid climate means residents and visitors alike face notable UV exposure, especially during the summer months. By staying informed on UV levels, you can enjoy the beautiful sunny days while safeguarding your skin from harmful rays.
Throughout the day, the UV Index experiences a remarkable ascent and subsequent descent, reflecting the sun's peak intensity. Starting at a gentle 1 in the early hours of 07:00 and 08:00, the index gradually climbs to reach a moderate level of 2 by 09:00. However, it escalates dramatically at 10:00, spiking to 4, and by 11:00, the sun's rays are striking with a powerful force, resulting in a significant 7. The apex occurs at 12:00, hitting a striking 10, and shortly after, it peaks at 11 by 13:00 before achieving its highest mark of 12 at 14:00. As the afternoon progresses, there’s a noticeable decrease, with the index descending to 11 at 15:00, and continuing to decline to 5 by 17:00. By evening, it gently tapers off to 3 at 18:00 and finishes the day at a comfortable 1 by 19:00. With such fluctuations, it’s essential to stay protected during the midday hours when the sun is at its strongest!
| 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 | 4 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 12 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | 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, UV exposure significantly fluctuates, with the highest risk months occurring from March through September, where the UV Index consistently reaches extreme levels of 10 to 12. Specifically, April to August presents the greatest danger with an unprecedented UV Index of 12, allowing only a mere 10 minutes before burning may occur. January and November pose moderate to high risks, while December offers the safest conditions with a reduced UV Index of 5. Residents and visitors are strongly advised to take precautionary measures during high-risk months, such as wearing sunscreen, protective clothing, and seeking shade to minimize UV exposure and reduce the risk of sunburn.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nueva Rosita | 6 | 9 | 10 | 11 | 11 | 12 | 12 | 12 | 11 | 9 | 7 | 5 |
| 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 |