Last updated: June 2, 2025
In Piedra Blanca, Peru, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding daily UV levels helps you take proactive measures against sunburn and long-term skin damage, ensuring your outdoor activities remain safe and enjoyable. With its BWk climate, Piedra Blanca experiences variable UV exposure, peaking between 10 AM and 2 PM when UV levels can soar to 8, making it essential to stay informed about potential risks. By monitoring the UV Index, residents and visitors can better safeguard themselves from harmful radiation while embracing the beauty of their sun-soaked surroundings.
The UV Index for the day shows a clear peak during the late morning to early afternoon hours. Starting at a low of 1 at 07:00, the index rises steadily, reaching a notable 8 by 11:00 and 12:00. As the sun shines brightly, it's essential to take precautions against the UV radiation at this time. By 13:00, the index begins to decline to 7, and by 14:00, it drops further to 4. The late afternoon brings a return to safe levels, with the index falling to 2 at 15:00 and sinking to 1 by 17:00. Finally, by 18:00, the UV Index dips to 0, marking the end of the high-risk hours. Remember to stay protected when the UV levels are at their peak!
| 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 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 2 | low | 45 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index in this region exhibits significant variability, with the highest levels occurring during the winter and early spring months. January and February consistently show an extreme UV Index of 16, with a rapid burn time of just 10 minutes. This pattern continues through March and April, where UV levels remain extremely high at 14 and 12, respectively. The risk temporarily decreases in May and June, dropping to very high levels of 10 and 8, but quickly escalates again in August and September, reaching extreme levels once more. Notably, October and November also present high UV risks, maintaining extreme scores. Residents and visitors are advised to take precautions during these high-risk months—particularly from January to April and again from August to November—by applying sunscreen, wearing protective clothing, and limiting sun exposure to reduce the risk of skin damage.
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 |
| Piedra Blanca | 16 | 16 | 14 | 12 | 10 | 8 | 9 | 11 | 13 | 15 | 16 | 16 |
| 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 |