UV Index in San Isidro, Argentina

Last updated: June 2, 2025

In San Isidro, Argentina, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. The region experiences a BSk climate, characterized by a continental tendency and significant sunlight, particularly during mid-day when UV levels peak. As the UV Index can reach heights of 5 around midday, awareness of these levels is vital for safe outdoor activities. By staying informed about the UV Index, residents and visitors can take proactive measures to protect their skin, ensuring a fun and safe experience under the Argentine sun.

Hourly UV Index in San Isidro

The UV Index today starts off low, with maximum readings of 0 until 09:00, making it a safe time for morning activities. As the sun rises higher, the index gradually increases, peaking at 5 between 13:00 and 14:00. This indicates a moderate risk of harm from unprotected sun exposure during the late morning and early afternoon. Fortunately, as the day progresses into the afternoon and evening, the UV levels start to decline, dropping back to 1 by 17:00 and returning to 0 by 19:00. For those planning outdoor activities, it’s best to enjoy the midday sun while being mindful of the increasing UV risk!

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	0	low	45 min
09:00	1	low	45 min
10:00	2	low	45 min
11:00	3	moderate	30 min
12:00	4	moderate	30 min
13:00	5	moderate	30 min
14:00	5	moderate	30 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Isidro

Throughout the year, UV levels fluctuate significantly, with the highest risk months occurring from January to March and again in October to November, when the UV Index reaches extreme levels (up to 16), with a burn time of just 10 minutes. The transition in risk continues with April marking a shift to very high exposure (UV Index 10, burn time 15 minutes), while May through July sees a moderate reduction, where the UV Index ranges from 5 to 7 and burn times increase to 25-30 minutes. August maintains high exposure levels similar to July, before returning to very high levels in September. Visitors and residents are advised to take precautions during high UV months by wearing protective clothing, applying sunscreen frequently, and limiting sun exposure during peak hours to minimize the risks of skin damage.

Monthly Maximum UV Index for San Isidro, Argentina

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

The table above highlights how UV exposure in San Isidro 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 Isidro'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 Isidro	16	14	13	10	7	5	6	7	10	13	15	15
San Miguel de Tucuman UVI	15	14	13	10	7	5	6	7	10	13	15	15