Last updated: July 2, 2025
Understanding the UV Index in El Rosario, Mexico is crucial for maintaining skin health and preventing sunburn. As residents and visitors navigate the Cfa climate of this vibrant locale, awareness of UV levels is essential, especially during peak hours when the index can soar to a staggering 15. This means that prolonged unprotected exposure can lead to serious skin damage. With intense sunlight typically peaking between 11:00 AM and 2:00 PM, knowledge of these UV risks empowers individuals to make informed decisions about sun protection and to enjoy the beautiful weather safely. Stay informed, and keep your skin healthy while soaking in all that El Rosario has to offer!
The UV Index starts low in the morning, with values of 1 at both 07:00 and 08:00. As the day unfolds, it ** climbs steadily**, peaking at a striking 15 during the afternoon hours of 13:00 and 14:00. This indicates an intense level of UV radiation, which necessitates taking precautions against sun exposure. By 15:00, the index begins to dip, indicating a gradual decrease in UV intensity, falling to 5 by 17:00. As evening approaches, the index cools down to 2 at 18:00 and returns to a benign 1 by 19:00. This significant rise and fall highlight the importance of monitoring the UV Index, especially during peak hours when outdoor activities can lead to increased risk of sunburn.
| 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 | 9 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 15 | extreme | 10 min |
| 14:00 | 15 | extreme | 10 min |
| 15:00 | 13 | 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 |
The UV exposure varies significantly throughout the year, with January displaying a UV Index of 9, categorized as very high, indicating a burn time of 15 minutes. From February to October, the UV Index escalates sharply, peaking at 15 in May and July, falling under the extreme category with a dangerously low exposure limit of 10 minutes before tapering off in November and December. The high-risk months for UV exposure and potential skin damage are therefore from February to October, especially in the summer months. Residents and visitors are strongly advised to take protective measures during these periods, including wearing sunscreen, protective clothing, and seeking shade whenever possible to minimize the risk of sunburn and long-term skin damage.
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 |
| 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 |
| El Rosario | 9 | 12 | 13 | 14 | 15 | 14 | 15 | 14 | 14 | 12 | 10 | 8 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |