Last updated: May 3, 2025
Understanding the UV Index is crucial for residents of Genaro Herrera, Peru, where the high-altitude climate can lead to significant sun exposure risks. As UV levels peak rapidly throughout the day, reaching a maximum of 13 around noon, being informed about these levels is essential for sunburn prevention and maintaining long-term skin health. In this region, the typical warm and sunny conditions mean that knowing when to seek shade or apply sunscreen can make all the difference in safeguarding your skin from harmful ultraviolet rays. Stay alert and proactive to enjoy the sun safely while minimizing health risks!
As the day unfolds, the UV Index embarks on a thrilling ascent, reaching its peak around 11:00 AM and 12:00 PM at a blazing 13, indicating the need for sun protection. Visitors basking in the sunlight at 10:00 AM encounter a sharp rise to 10, while the early morning hours remain mild, with a low of 1 at 7:00 AM. As the afternoon approaches, the intensity wanes, dropping to a refreshing 5 by 3:00 PM, and further declines as the sun begins its descent, fading to 0 by 7:00 PM. This chart serves as a reminder that while midday sun can be relentless, the early and late hours offer a gentle reprieve for outdoor enthusiasts. Enjoy the sunshine, but don’t forget your sunscreen during those peak hours!
| 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 |
Throughout the year, UV Index levels remain consistently extreme, with values peaking at 16 from January to April. This indicates a high risk of harm from unprotected sun exposure, with a burn time of just 10 minutes in all months. May through August sees a slight decline in the UV Index, ranging from 11 to 13, yet still warrants caution. As summer wanes into September and October, the UV Index fluctuates between 13 and 14, maintaining the high-risk category. November and December continue this trend, underscoring that the potential for skin damage remains significant year-round. Residents and visitors are strongly advised to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade, especially during these high UV months.
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 |
| Genaro Herrera | 15 | 16 | 16 | 16 | 13 | 12 | 11 | 12 | 13 | 14 | 13 | 13 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |