Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in San Pedro, Peru, where sunny days are frequent due to its BWh climate. Knowing the daily UV levels helps individuals take proactive steps to prevent sunburn and protect their skin health. With UV Index readings peaking at an alarming 14 around noon, it’s essential to stay informed about these levels to enjoy the outdoors safely. Moderate levels in the morning and late afternoon can be deceptive, making it important to apply sun protection during all hours of sun exposure. Stay vigilant to maintain your skin health while relishing the beautiful sunshine of San Pedro!
The UV Index throughout the day follows a striking pattern, peaking sharply during the midday hours. Starting early, at 07:00, it begins at a modest 1, slowly climbing to 2 by 08:00. As the sun rises higher, the index reaches a significant 9 by 10:00 and escalates to a glaring 14 at 12:00, marking the height of solar intensity. Interestingly, this midday zenith of 12:00 draws a slight decline by 14:00, settling at 10. From there, a gentle descent occurs, with values dropping to 6 by 15:00 and further down to 3 at 16:00. The evening hours see a return to low levels, closing out the day with 1 at 17:00 and fading to 0 by 19:00. This data highlights the critical need for sun protection during the peak hours when UV radiation is the strongest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 12 | 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 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index remains alarmingly high, with all months falling under the extreme exposure category. January to March sees the peak UV Index reaching 17, indicating significant risk of harm from unprotected sun exposure, with a quick burn time of just 10 minutes. While the index slightly decreases to 12-14 in the summer months, the danger remains substantial, particularly during the high-risk months from January to March. Residents and visitors are advised to take extreme precautions, wearing protective clothing, applying sunscreen frequently, and limiting outdoor activities during peak sunlight hours to avoid severe 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 |
| 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 |
| San Pedro | 15 | 16 | 17 | 16 | 14 | 12 | 12 | 13 | 15 | 15 | 15 | 14 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |