Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Grandeza del Rio Blanco, Mexico, where the climate can present significant sun exposure risks. As the sun rises, UV levels can dramatically increase, peaking at a harmful 14 around midday. Being aware of these fluctuations helps prevent sunburn and protects skin health, making it essential to take precautions during peak hours. With a tropical savanna climate, Grandeza del Rio Blanco's high UV levels not only enhance the risk of immediate harm but contribute to long-term health issues. Stay informed and enjoy the sun safely!
During the early morning hours, the UV Index starts off low, peaking at only 1 at both 7:00 and 8:00. As the day progresses, sunlight intensifies, and by 9:00, the index jumps to 4. The sun reaches its zenith from 11:00 to 14:00, where the UV Index soars to a staggering 14 at 13:00, indicating extremely high levels of solar radiation. As afternoon turns to evening, the index gradually declines, dropping to 11 at 15:00, then down to 4 by 17:00 and finally waning to 1 again by 19:00. It's essential to stay protected during those peak hours, particularly between 11:00 and 14:00, when the sun's rays are at their most powerful!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 13 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 7 | high | 25 min |
| 17:00 | 4 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, UV exposure levels vary significantly, with the highest risks occurring from February to October. During these months, the UV Index frequently reaches extreme levels, peaking at 15 in April through July, meaning that a burn can occur in just 10 minutes. It is crucial for visitors and residents to take precautions during these high-risk months, such as seeking shade, wearing protective clothing, and applying sunscreen liberally. Notably, January and November see a slightly lower UV Index of 10, categorized as very high, resulting in a burn time of 15 minutes. The least intense UV levels occur in December with an index of 9, but vigilance is still advised. Overall, awareness and proactive sun protection are essential to prevent harmful effects from UV radiation throughout the year.
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 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |
| Grandeza del Rio Blanco | 10 | 13 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |