Last updated: August 1, 2025
Understanding the UV Index in Los Negros, Bolivia, is crucial for anyone looking to protect their skin and overall health from the sun's harmful rays. With peak UV levels reaching 9 around midday, awareness of these fluctuations can significantly aid in sunburn prevention and long-term skin health. Given the region's Aw climate, characterized by hot temperatures and high UV exposure, it's essential to stay informed about daily UV indices to enjoy the sunshine responsibly. Prioritizing UV awareness will help you safely navigate outdoor activities while minimizing risks associated with sun exposure.
The UV Index experiences a notable rise throughout the morning, starting from a mellow 1 at 07:00 and gradually climbing to its peak at 12:00 with a striking 9. As the day progresses, the intensity begins to wane, dropping to 4 by 15:00 and descending further to 1 by 17:00. By the evening, the UV Index dips into the safety zone, showing 0 by 18:00 and remaining there for the rest of the night. This daily sunlight pattern underscores the importance of protection during peak hours, especially between 11:00 and 13:00 when exposure is at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 2 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index demonstrates significant seasonal variation, with the highest levels occurring during the winter and early spring months. From January to April, the UV Index remains at an extreme level of 15-14, indicating a dangerously high risk of harm from unprotected sun exposure, where burn time is only 10 minutes. This trend continues into September, with a spike back to 13, and peaks again in October and November at 16, necessitating caution during these months as well. The summer months of May to August experience a slightly lower UV Index (ranging from 8 to 10), categorized as very high, allowing for a burn time of 15 minutes. Visitors and residents are strongly advised to take proactive sun safety measures, such as wearing sunscreen, protective clothing, and seeking shade, especially during the high-risk months of January, February, March, April, September, October, November, and December.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Santa Cruz de la Sierra UVI | 15 | 15 | 14 | 13 | 10 | 8 | 9 | 10 | 12 | 15 | 16 | 16 |
| Los Negros | 15 | 15 | 14 | 13 | 10 | 8 | 9 | 10 | 13 | 15 | 16 | 16 |
| Sucre UVI | 17 | 17 | 16 | 14 | 11 | 9 | 10 | 12 | 15 | 17 | 17 | 18 |
| Sacaba UVI | 17 | 18 | 17 | 15 | 12 | 10 | 10 | 13 | 15 | 17 | 18 | 19 |
| Cochabamba UVI | 18 | 18 | 17 | 15 | 12 | 10 | 11 | 13 | 16 | 18 | 18 | 19 |
| Oruro UVI | 19 | 19 | 17 | 16 | 13 | 10 | 11 | 14 | 16 | 19 | 19 | 19 |