Last updated: August 1, 2025
Understanding the UV Index is crucial for residents and visitors of La Oroya, Peru, where the high altitudes and unique climate conditions present significant sun exposure risks. With UV levels peaking dramatically, especially around midday, awareness of these fluctuations can mean the difference between protecting your skin and suffering from painful sunburns. This town experiences an average ET climate, characterized by cooler temperatures, but don't be fooled—UV rays can be deceptively strong. By staying informed about the UV Index, you can take proactive steps to safeguard your skin health while enjoying the beautiful landscapes that La Oroya has to offer.
As the sun rises, the UV Index steadily climbs, starting at a moderate 1 at 07:00 and reaching a significant 14 by 12:00, marking the peak of the day. Between 10:00 and 13:00, UV levels soar, peaking at 13 for a few hours, a reminder to stay protected under the midday sun. However, as the afternoon wanes, the index drops sharply, down to 6 by 15:00, before continuing to decline to 3 at 16:00 and ultimately returning to a safe 0 by 18:00. This data underscores the importance of being sun-smart during peak hours when the risk of UV exposure is at its highest.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 11 | extreme | 10 min |
11:00 | 14 | extreme | 10 min |
12:00 | 15 | extreme | 10 min |
13:00 | 14 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 6 | high | 25 min |
16:00 | 3 | moderate | 30 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 remains consistently extreme, peaking in January at 22 and remaining high until May, where it starts to lower slightly to 15 in June. The UV Index rises again in September and October, reaching 19 and 20 respectively, before stabilizing into late autumn and winter months. Key high-risk months for sun exposure are January, February, and March, each with a UV Index above 20 and a burn time of just 10 minutes. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing sunscreen, protective clothing, and seeking shade, especially during peak sun hours, to minimize the risk of harmful UV radiation effects.
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 |
La Oroya | 22 | 20 | 21 | 18 | 15 | 13 | 14 | 15 | 18 | 19 | 20 | 20 |