UV Index in Castelli, Argentina

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Castelli, Argentina, where sun exposure can significantly impact skin health. The UV levels in this areas fluctuate throughout the day, peaking between 11:00 AM and 1:00 PM, when a score of 4 indicates a heightened risk of harm from unprotected sun exposure. Being aware of these levels is essential for effective sunburn prevention and maintaining overall skin health, particularly in a climate zone characterized by mild summers and cool winters, which can lead to surprising UV risks even on cloudy days. Stay informed and protect your skin by checking the UV Index regularly!

Hourly UV Index in Castelli

The UV Index for today paints a clear picture of sun intensity throughout the hours. Starting from a low of 0 at 07:00, the day gradually warms up, reaching 1 by 08:00 and maintaining that level until 09:00. As the sun climbs higher, we see a rise to 2 at 10:00 and peaking at 4 by 13:00—the most critical time for sun exposure. After this midday high, the index dips slightly to 3 between 14:00 and 12:00, before gradually decreasing towards the evening, arriving back at 0 by 19:00. Remember to protect your skin during the peak hours when the UV Index hits its highest levels!

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	3	moderate	30 min
12:00	3	moderate	30 min
13:00	4	moderate	30 min
14:00	3	moderate	30 min
15:00	2	low	45 min
16:00	1	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 Castelli

Throughout the year, UV levels fluctuate significantly, with the highest risks observed during the peak months of January, February, March, November, and December, all categorized as extreme, registering a UV Index of 14 or 13 and a burn time of only 10 minutes. April and September present a high risk, with a UV Index of 7, necessitating a quick exposure limit of 25 minutes. From May to August, UV levels decrease to moderate, ranging from a UV Index of 5 to 3, allowing for a burn time of 30 minutes. As visitors and residents enjoy outdoor activities, it is crucial to adopt protective measures, especially in the high and extreme months. Regularly applying sunscreen, wearing protective clothing, and seeking shade are strongly advised to mitigate the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Castelli, Argentina

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

The table above highlights how UV exposure in Castelli 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.

Castelli'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
Castelli	14	13	11	7	5	3	4	5	7	10	12	14
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