Last updated: June 2, 2025
In Changuillo, Peru, staying informed about the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels can significantly aid in preventing sunburn and reducing long-term skin damage. Located in a BWh climate zone, Changuillo experiences varying UV exposure throughout the day, peaking at a formidable 9 between 11:00 AM and 12:00 PM. With this knowledge, residents and visitors can take necessary precautions to enjoy the sun safely and maintain their skin health while embracing the region's vibrant outdoor lifestyle.
The UV Index fluctuates throughout the day, starting at a minimal level of 1 at 07:00. As the sun climbs higher, it peaks dramatically, reaching an intense 9 by 11:00 and maintaining that level until 12:00. The index gradually declines after noon, dropping to 6 by 14:00, before further decreasing to 4 at 15:00. As the afternoon fades, the UV Index diminishes quickly, falling back to 2 by 16:00 and finally retreating to 0 after 18:00. This hourly data highlights the crucial need for sun protection during the midday hours when UV 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 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | 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 |
Throughout the year, UV Index readings indicate significant variability in exposure levels, particularly highlighting high-risk months. From January to April, the UV Index consistently reaches 16 (extreme), allowing for a burn time of merely 10 minutes. May experiences a slight decrease to an index of 11 (still extreme), shifting burn time to 10 minutes. Entering peak summer, June and July show a reduced index of 9 and 10 respectively (very high), allowing for an increased burn time of 15 minutes. However, as fall approaches, months like August and September again see figures hitting 12 and 14 (extreme), narrowing burn time back to 10 minutes. The year concludes with high readings from October to December (16), underscoring that winter months are not to be underestimated. Visitors and residents are strongly advised to take precautions year-round—especially during high-risk months like January through April, August, and November—by wearing sunscreen, protective clothing, and sunglasses, and seeking shade when necessary to mitigate harmful UV 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 |
| Changuillo | 16 | 16 | 15 | 14 | 11 | 9 | 10 | 12 | 14 | 15 | 16 | 16 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |