UV Index in Buenos Aires, Colombia

Last updated: July 2, 2025

Understanding the UV Index in Buenos Aires, Colombia, is crucial for maintaining skin health and preventing sunburn. The city experiences a warm Af climate, with UV levels peaking during midday, posing significant exposure risks to residents and visitors alike. With UV Index values soaring to a blistering 14 at noon, being aware of these levels can help you make informed decisions about sun safety. Shielding yourself from harmful rays isn’t just about comfort; it’s a vital step in protecting your skin from long-term damage. Stay informed, stay protected, and enjoy all that Buenos Aires has to offer under the sun!

Hourly UV Index in Buenos Aires

The UV Index throughout the day tells a vivid story of sun intensity, peaking sharply at 12:00 with an impressive 14. Starting from a mild 1 at 07:00, the index climbs steadily, reaching 9 by 10:00. The sun's rays become increasingly fierce, hitting its maximum of 13 at 11:00 and again at 13:00. As the afternoon rolls in, the UV levels begin to decline, dropping to 10 at 14:00, then further down to 7 by 15:00. Post-sunset, the UV Index swiftly cools off, returning to a safe 1 by 17:00 and finally settling at 0 by 19:00. Whether you're planning outdoor activities or simply soaking in the sun, be mindful of these fluctuations to protect your skin!

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	9	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	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

The UV Index shows consistently high levels throughout the year, with January to April peaking at 16 to 17, indicating an extreme exposure category. The highest risk months are from January to April, where the burn time is as short as 10 minutes. Although the UV Index slightly declines in the subsequent months, it remains at 13 to 14, also categorized as extreme exposure. Visitors and residents are advised to take precautionary measures during these periods, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak UV hours, to prevent sunburn and long-term skin damage. Always stay vigilant, as even on cloudy days, harmful UV rays can penetrate and cause harm.

Monthly Maximum UV Index for Buenos Aires, Colombia

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 Colombia Cities

The table above highlights how UV exposure in Buenos Aires compares to other major locations across Colombia. 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 Colombia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barranquilla UVI	11	12	14	14	13	12	13	13	13	13	11	10
Cartagena UVI	11	11	13	15	13	13	12	13	13	13	11	10
Buenos Aires	15	16	16	17	15	13	14	14	14	14	13	12
Medellin UVI	14	15	17	16	16	14	14	15	14	14	13	12
Cali UVI	15	16	17	17	15	14	14	14	15	14	13	12
Bogota UVI	15	16	18	18	17	15	15	16	15	15	14	13