Last updated: August 1, 2025
In Cahuacho, Peru, being aware of the UV Index is crucial for safeguarding your skin against harmful radiation. The UV levels can vary significantly throughout the day, peaking at a level of 12 around midday, which underscores the necessity of understanding these fluctuations for effective sunburn prevention and overall skin health. Given Cahuacho's BSk climate, characterized by its dry, temperate conditions, residents and visitors alike must remain vigilant against excessive sun exposure during the hottest hours. Prioritizing UV awareness is essential to enjoy the beautiful outdoors without compromising your well-being.
The UV Index today illustrates a dramatic rise in solar intensity as the morning unfolds. Starting from a mild 1 at 07:00, it quickly escalates to a moderate 5 by 09:00. By 11:00, we reach a peak of 11, indicating high levels of ultraviolet radiation—perfect for sunscreen application and protective gear. Just an hour later, the index hits its highest point at a 12 by noon, before gradually declining to 4 by 15:00. As the afternoon wanes, UV levels dip to 2 by 16:00 and drop off completely by 18:00, giving way to a safe and cool evening with values returning to 0. In this quick snapshot, it's clear that the midday sun demands caution, while the late hours offer a refreshing reprieve.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 9 | 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 |
During the year, UV levels fluctuate significantly, with extremely high levels observed from January through April and consistently high values persisting until November. The high-risk months are particularly pronounced between January and April, where the UV Index remains at 18, indicating extreme exposure with a burn time of just 10 minutes. While June sees a slight dip to a very high index of 10, the trend of high UV levels resumes in July and August before peaking again in October. To safeguard your health, it is imperative that both visitors and residents take precautions during these months, including wearing broad-spectrum sunscreen, protective clothing, and seeking shade, especially during peak hours. Staying informed and prepared can help mitigate the risks associated with prolonged sun exposure.
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 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |
| Cahuacho | 18 | 18 | 17 | 16 | 13 | 10 | 12 | 13 | 15 | 17 | 18 | 18 |