Last updated: August 1, 2025
In San Antonio de Cheni, Peru, being aware of the UV Index is crucial for protecting your skin from the sun’s harmful effects. The UV Index measures the strength of ultraviolet radiation, helping residents and visitors understand the right precautions to take against sunburn and long-term skin damage. With a climate characterized by warm temperatures and high UV exposure—especially around midday when levels can reach a peak of 11—it's vital to monitor the UV Index to ensure your outdoor activities remain enjoyable and safe. By staying informed, you can take proactive steps to safeguard your skin health and enjoy all that this beautiful region has to offer!
The UV Index today peaked dramatically in the late morning, starting from a low of 1 at 07:00 and climbing to an impressive 11 by 12:00. This intense exposure reached its zenith at 11:00, where precautions were essential as the Index hit 10. As the afternoon progressed, the UV levels began to gradually decline, dropping to 4 by 15:00 and further down to a modest 2 by 16:00. By the evening, the sun had softened, bringing the UV Index back to 1 at 17:00, and ultimately fading to 0 by 18:00, when the day's light had nearly vanished. Make sure to stay protected during peak hours to enjoy the sunshine safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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 in this region remains consistently high throughout the year, with extreme exposure levels noted from January to November, peaking at 16 during the winter and late fall months. Specifically, the highest-risk months are January, February, March, November, and April, all marked by a UV Index of 16, indicating a very quick burn time of just 10 minutes. Visitors and residents are strongly advised to take precautionary measures during these periods, such as wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure during peak hours. Even in the summer months, the UV Index remains significantly elevated, averaging around 11 to 12, underscoring the importance of continual sun safety practices.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Callao UVI | 14 | 14 | 14 | 12 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 13 |
| Lima UVI | 14 | 14 | 14 | 12 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 13 |
| Trujillo UVI | 15 | 15 | 15 | 14 | 12 | 11 | 11 | 11 | 13 | 14 | 14 | 14 |
| Chiclayo UVI | 14 | 15 | 15 | 14 | 13 | 11 | 11 | 12 | 15 | 14 | 14 | 13 |
| San Antonio de Cheni | 16 | 16 | 16 | 15 | 12 | 11 | 11 | 12 | 14 | 15 | 16 | 15 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |