UV Index in Castro Barros, Argentina

Last updated: July 2, 2025

In Castro Barros, Argentina, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps residents and visitors alike take preventive measures against sunburn and long-term skin damage. With a BSh climate characterized by warm and sunny conditions, the risk of high UV exposure peaks during midday hours, particularly between 10 AM and 3 PM when indices can reach levels of 5. This awareness is key to enjoying the beautiful Argentinian outdoors while keeping your skin safe and healthy.

Hourly UV Index in Castro Barros

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 Castro Barros

Throughout the year, seasonal UV changes reveal distinct patterns in sun exposure risk. The high-risk months occur from January to March and again in November and December, with extreme UV Index values peaking at 15 in December and 14 in both January and November, indicating a burn time of just 10 minutes. In contrast, during the middle months, UV exposure decreases gradually, with the Index reaching a moderate level of 4 to 5 from June to July, extending the burn time to 30 minutes. As the seasons shift back towards fall, UV levels rise again in September. Residents and visitors should be particularly vigilant during the extreme and very high exposure months—January, February, March, October, November, and December—taking necessary precautions such as applying sunscreen, wearing protective clothing, and seeking shade to minimize the risk of sunburn and skin damage.

Monthly Maximum UV Index for Castro Barros, Argentina

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

The table above highlights how UV exposure in Castro Barros 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.

Castro Barros'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
Castro Barros	14	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