Last updated: August 1, 2025
Understanding the UV Index in San Juan de La Libertad, Peru, is crucial for safeguarding your skin while enjoying the sun-soaked days this coastal gem offers. High UV levels can lead to sunburn and long-term skin health issues, making it essential to check UV levels regularly. With a climate characterized by tropical conditions, visitors and residents alike should be aware of peak UV exposure times, especially between 10:00 AM and 2:00 PM, when the index can soar up to 13. Stay informed, protect your skin, and embrace the beauty of sunny days while minimizing your risk.
The UV Index throughout the day shows a distinct peak in intensity, highlighting the need for sun protection during the midday hours. Starting from a mild gauge of 1 at 7 AM, the index gradually climbs, hitting 5 by 9 AM. The real surge begins at 10 AM, when it skyrockets to 9, peaking at an intense 13 at noon—the most critical time for safeguarding skin. As the afternoon unfolds, the index gradually descends, maintaining a moderate 6 by 3 PM before tapering off to 1 by 5 PM, and finally settling at 0 after 6 PM. The fluctuating values underscore the importance of staying vigilant against UV exposure, especially during those hours when the sun is at its highest.
| 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 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 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 |
The UV Index exhibits remarkably high levels throughout the entire year, consistently falling within the extreme exposure category. From January to April, the UV Index remains at 19, posing the highest risk for skin damage with a rapid burn time of just 10 minutes. May sees a slight decrease to 14, while June to August fluctuates between 12 and 14. However, September marks a resurgence with a UV Index of 16, and October and November follow closely behind at 18. December slightly drops to 17. Given these persistently high UV levels, it is crucial for both visitors and residents to take strict precautions during all months, including wearing protective clothing, applying broad-spectrum sunscreen, and limiting direct sun exposure, especially during peak hours.
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 |
| San Juan de La Libertad | 19 | 19 | 19 | 17 | 14 | 12 | 13 | 14 | 16 | 18 | 18 | 17 |