UV Index in Buenos Aires, Costa Rica

Last updated: July 2, 2025

In Buenos Aires, Costa Rica, understanding the UV Index is crucial for protecting your skin and overall health. With high UV levels peaking at 14 during the midday hours, awareness can help prevent sunburn and long-term skin damage, especially in this tropical climate where sun exposure risks are significant. As you enjoy the beautiful surroundings, keeping an eye on the UV Index levels—ranging from moderate to extreme—will ensure you stay safe while basking in the sun. Remember, taking precautions during those peak hours can make all the difference in maintaining healthy skin for years to come!

Hourly UV Index in Buenos Aires

The UV Index peaks dramatically during the midday hours, illustrating the sun's intensity in compelling detail. Starting at a modest 2 by 07:00, it swiftly ascends as the day unfolds. By 08:00, it jumps to 5, and then reaches a significant 8 at 09:00. The sun is at its fiercest between 10:00 and 12:00, with the index soaring to 14, an indication to take extra precautions! As 13:00 rolls around, the UV level dips slightly to 12, only to further decrease to 9 by 14:00. Post-midday, the sun's strength wanes; it dramatically drops to 5 by 15:00 and decreases to 1 by 17:00, finally settling at 0 by 19:00. Such data highlights the importance of sun protection during the peak hours when the UV intensity is at its highest.

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	2	low	45 min
08:00	5	moderate	30 min
09:00	8	very high	15 min
10:00	12	extreme	10 min
11:00	14	extreme	10 min
12:00	14	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, UV radiation levels remain at consistently high levels, categorized as extreme from January to November. The UV Index peaks in April at 16, indicating that March to May are particularly high-risk months, with an index fluctuating between 15 and 16. Although the index slightly drops in November and December, the exposure remains significant, peaking at 10 minutes for burn time across all months. Visitors and residents are advised to take precautionary measures, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during the sun's peak hours to minimize the risk of skin damage.

Monthly Maximum UV Index for Buenos Aires, Costa Rica

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 Costa Rica Cities

The table above highlights how UV exposure in Buenos Aires compares to other major locations across Costa Rica. 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 Costa Rica. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Limon UVI	12	13	14	15	14	13	13	13	13	14	11	10
Liberia UVI	11	13	14	14	14	14	14	13	13	13	11	10
Alajuela UVI	12	13	15	15	14	14	14	13	13	14	12	10
San Jose UVI	12	14	15	16	14	14	14	14	14	15	12	11
Buenos Aires	13	14	15	16	15	14	14	14	14	14	12	11
Paraiso UVI	13	14	16	16	15	15	15	14	14	15	12	11