UV Index in San Antonio, Argentina

Last updated: July 2, 2025

In San Antonio, Argentina, staying informed about the UV Index is crucial for protecting your skin and overall health. Understanding the UV levels throughout the day allows residents and visitors to take preventative measures against sunburn and long-term skin damage. With a climate classified as Cwb, San Antonio experiences varied UV exposure, peaking between 11:00 AM and 2:00 PM when levels can soar to 7. By being aware of these fluctuations, you can enjoy the sun safely while minimizing risks to your skin health.

Hourly UV Index in San Antonio

The UV Index data for the day unfolds a dynamic story of solar intensity. Starting at a maximum of 0 at 07:00, the index gradually creeps up to 1 by 08:00 and remains at that level until 09:00. As the sun climbs higher, it peaks at a significant 7 during the noon hours of 13:00 and 14:00, indicating a high risk of harm from unprotected sun exposure. The afternoon brings a slight decrease, with the index dropping to 5 by 15:00 and continuing to decline throughout the evening. By 19:00, it settles back to 0, signaling that the sun's strength has diminished. Overall, this hourly snapshot underscores the importance of sun protection during peak hours, especially between 11:00 and 14:00 when the UV Index 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	0	low	45 min
08:00	1	low	45 min
09:00	1	low	45 min
10:00	2	low	45 min
11:00	4	moderate	30 min
12:00	6	high	25 min
13:00	7	high	25 min
14:00	7	high	25 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Antonio

During the year, seasonal UV changes show particularly high levels from January to April and again in September to November, characterized by an extreme UV Index of 16-14, with a rapid burn time of just 10 minutes. May to August experience a slight decline, moving to very high and high categories, yet still require caution, especially in May and August with burn times of 15 minutes. Residents and visitors should take extra precautions during the high-risk months of January, February, March, April, September, October, November, and December, by wearing protective clothing, applying sunscreen diligently, and seeking shade, especially during peak sun hours, to minimize the risk of UV exposure.

Monthly Maximum UV Index for San Antonio, Argentina

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Antonio. 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 San Antonio, 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 San Antonio UV Index with Other Argentina Cities

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

San Antonio's solar exposure compared to other cities in Argentina. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Buenos Aires UVI	14	13	11	7	5	4	4	6	8	10	13	14
Rosario UVI	14	13	11	8	5	4	4	6	8	11	13	14
Mendoza UVI	15	14	12	8	6	4	5	6	9	12	14	15
Cordoba UVI	15	13	12	9	6	4	5	7	9	12	14	15
San Miguel de Tucuman UVI	15	14	13	10	7	5	6	7	10	13	15	15
San Antonio	16	15	14	11	8	6	7	9	11	14	16	16