Last updated: May 3, 2025
Understanding the UV Index in Borja, Peru is crucial for safeguarding your skin health and preventing painful sunburns. With its Aw climate, characterized by warm temperatures, the region experiences significant UV exposure, especially during midday hours when the index peaks. Awareness of UV levels not only helps you plan your outdoor activities wisely but also ensures you take the necessary precautions to protect yourself from harmful ultraviolet radiation. In Borja, where UV readings can soar to an alarming 14 around noon, being informed is your best defense against long-term skin damage.
The UV Index varies significantly throughout the day, presenting a clear pattern of intensity as the sun climbs higher in the sky. Early morning hours start off gently, with a maximum of 1 at 07:00, increasing to 3 by 08:00. As the clock strikes 09:00, the Index surges to 6, signaling a rising need for sun protection. The peak occurs around 12:00, hitting an impressive 14, indicating it's crucial to stay shaded or slathered in sunscreen. Following this maximum, the intensity gradually tapers off, dropping to 10 at 14:00, then back to 6 by 15:00. The day winds down with a gentle decline as the sun sets, resulting in 3 by 16:00, and finally settling at 1 by 17:00 and returning to 0 after 18:00. This data highlights the importance of being sun-smart during the middle of the day.
| 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 | 9 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 12 | 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 |
Throughout the year, UV Index values consistently indicate an extreme risk of harm from unprotected sun exposure, with burn times of only 10 minutes across all months. Notably, the highest values are recorded from February to April, where the UV Index peaks at 16. May sees a slight decline to 14, followed by a stable 12 from June to August. As summer transitions to fall, September returns to 14, and October rises to 15, before slightly decreasing to 13 in December. Visitors and residents are advised to take precautions year-round, particularly from February through October, when the UV exposure remains at dangerous levels, including wearing protective clothing, applying sunscreen, and seeking shade during peak hours to safeguard against potential 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 |
| Borja | 15 | 16 | 16 | 16 | 14 | 12 | 12 | 12 | 14 | 15 | 14 | 13 |
| Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |