UV Index in Buenos Aires, Peru

Last updated: July 2, 2025

Understanding the UV Index in Buenos Aires, Peru, is crucial for everyone who values their skin health and wants to prevent sunburn. With the city's BWh climate, residents and visitors alike are often exposed to high UV levels, particularly between 10 AM and 2 PM, when the index peaks at a dangerous 12. This knowledge empowers you to take proactive measures, such as seeking shade or applying sunscreen, allowing you to enjoy the sun safely while minimizing the risk of skin damage. Stay informed and protect your skin!

Hourly UV Index in Buenos Aires

The UV Index tomorrow will experience a sharp ascent, beginning with a modest 1 at 07:00. As the sun rises higher, expect a steady increase, peaking at an intense 12 by noon. This midday high presents a strong risk of harm from unprotected sun exposure, with careful precautions recommended. The afternoon sees the index gradually descend, dropping to 6 by 15:00 and down to 1 by 17:00, signaling a cooling off as the day winds down. As evening approaches, the UV levels dip to 0 after sunset, making for a safe time to enjoy the outdoors without worry. Remember to protect your skin during peak hours, especially between 10:00 and 14:00!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
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	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

Monthly UV Index Trends in Buenos Aires

Throughout the year, the UV Index reveals consistent extreme exposure levels, particularly from January to April, with values peaking at 16 in February and March. This extreme risk persists into the fall, with September and October also recording high indices of 14 and 15, respectively. May to August sees slightly lower yet still concerning levels, ranging from 11 to 13. Residents and visitors should remain vigilant during these high-risk months, especially from January to April, as the burn time is a mere 10 minutes across all months. It is essential to take protective measures, such as wearing sunscreen, hats, and protective clothing, to prevent harmful UV exposure throughout the year.

Monthly Maximum UV Index for Buenos Aires, Peru

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Buenos Aires. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Buenos Aires, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Buenos Aires UV Index with Other Peru Cities

The table above highlights how UV exposure in Buenos Aires compares to other major locations across Peru. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Buenos Aires's solar exposure compared to other cities in Peru. Generated using Copernicus Atmosphere Monitoring Service information.
	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	16	16	15	13	11	12	12	14	15	14	15
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17