Last updated: June 2, 2025
Understanding the UV Index is crucial for anyone living in or visiting Buenos Aires, Peru, where the sun's rays can be surprisingly intense. With peak UV levels reaching a high of 12 around noon, it's essential to be aware of the potential for sunburn and long-term skin health issues. Buenos Aires experiences a BWh climate, characterized by sunny days and clear skies, making it imperative to know when to seek shade or apply sunscreen. By staying informed about the UV Index, you can protect yourself and enjoy all that this vibrant city has to offer while minimizing sun-related risks.
The UV Index rises steadily throughout the morning, starting at a safe 1 at 7:00 AM and gradually climbing to a peak of 12 by noon. This significant increase signifies a risk of harm from unprotected sun exposure, especially between 11:00 AM and 1:00 PM when the intensity reaches its zenith. As the afternoon progresses, the index begins to decline, dropping to 5 by 3:00 PM and further decreasing to 1 by 6:00 PM. By 7:00 PM, the sun's rays become gentle, with a UV Index of 0, making it a safe time to enjoy outdoor activities. Remember to protect yourself during peak hours to enjoy the sun safely!
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 | 10 | very high | 15 min |
12:00 | 12 | extreme | 10 min |
13:00 | 11 | extreme | 10 min |
14:00 | 9 | very high | 15 min |
15:00 | 5 | moderate | 30 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 |
The UV Index in this region remains extremely high throughout the year, with values peaking at 17 in March and consistently hovering between 12 to 15 during other months. Notably, the high-risk months for sun exposure are from January to April and September to October, where the UV Index is at its highest. Visitors and residents should take precautionary measures to protect their skin, including wearing broad-spectrum sunscreen, protective clothing, and seeking shade, particularly during midday hours. With a burn time of only 10 minutes across all months, it is crucial to remain vigilant about sun safety to prevent harmful effects from prolonged sun 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 |
Buenos Aires | 15 | 15 | 17 | 16 | 14 | 12 | 12 | 12 | 15 | 15 | 14 | 14 |
Arequipa UVI | 18 | 17 | 17 | 15 | 12 | 10 | 11 | 13 | 15 | 17 | 18 | 17 |