UV Index in Buenos Aires, Peru

Last updated: May 3, 2025

Understanding the UV Index is crucial for staying sun-safe in Buenos Aires, Peru. With high UV levels peaking at 13 around midday, awareness of these readings can significantly reduce the risk of sunburn and long-term skin damage. The city experiences a climate characterized by afternoon sunshine and high UV exposure, making it essential for residents and visitors alike to be vigilant about their sun protection strategies. In a place where the sun shines bright, knowing when to seek shade or apply sunscreen can make all the difference for your skin health.

Hourly UV Index in Buenos Aires

The UV Index reveals a striking pattern throughout the day, peaking dramatically around noon. Starting from a gentle 1 at 07:00, the index climbs steadily, hitting 3 by 08:00 before surging to 10 at 10:00 and reaching its maximum of 13 at 12:00. This midday high suggests the need for strong sun protection as the intensity begins to wane in the afternoon, dropping to 9 at 14:00 and further declining to a moderate 5 by 15:00. As the sun sets, the UV Index drops sharply to 2 at 16:00 and returns to its morning levels with a 1 at 17:00 and 0 from 18:00 onward. For sun-enthusiasts and safety-conscious individuals alike, the data paints a clear picture: the hours around midday demand the utmost vigilance against UV exposure!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Buenos Aires

Throughout the year, the UV Index remains extremely high in this region, with values consistently ranging from 11 to 16. Notably, the months of January through April exhibit the highest UV Index readings, reaching a peak of 16, indicating a high-risk period for sunburn with a burn time of just 10 minutes. While the index slightly decreases in May and June, it remains critical to stay vigilant, with sustained extreme levels until September before dropping gradually in the fall. For both visitors and residents, it is essential to take protective measures such as wearing sunscreen, long clothing, and seeking shade, particularly during these high-risk months when the UV Index poses a significant threat to skin health.

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	16	13	12	11	12	14	15	14	14
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17