Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Rio Grande, Mexico—a vibrant locale known for its warm, sunny climate. With the sun peaking at UV levels reaching as high as 14 during midday, awareness of these levels is essential for effective sunburn prevention and long-term skin health. By keeping an eye on the UV Index, you can protect yourself from harmful rays while enjoying outdoor activities, ensuring your time in this beautiful region is both safe and enjoyable. Stay informed and safeguard your skin while soaking up the sun in Rio Grande!
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 |
The seasonal UV changes indicate a significant increase in ultraviolet radiation from January to October, with the highest levels occurring from March to June, where the UV Index reaches 14. This peak marks a critical period for sun exposure, categorized as extreme, with a rapid burn time of just 10 minutes. Notably, February to October consistently presents a high risk for sunburn, making it essential for both visitors and residents to exercise caution during these months. High-risk months include March, April, May, June, July, August, September, and October, when UV levels remain elevated, necessitating proactive sun protection measures, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours. As the year transitions into November and December, UV exposure drops but remains classified as very high, reminding everyone to stay vigilant.
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 |
| Rio Grande | 9 | 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 |