UV Index in Castelli, Argentina

Last updated: July 2, 2025

In Castelli, Argentina, being aware of the UV Index is crucial for safeguarding your skin and overall health. With the sun's intensity peaking daily between 12:00 PM and 2:00 PM, it's essential to understand UV levels to prevent sunburn and long-term skin damage. The Cfa climate of Castelli exposes residents and visitors to a fair amount of UV radiation, particularly during the summer months. By staying informed on UV Index readings, you can effectively enjoy outdoor activities while minimizing the risks associated with excessive sun exposure.

Hourly UV Index in Castelli

The UV Index for today reveals a dynamic pattern as the sun climbs higher in the sky. Starting at 0 at 07:00, it gradually increases to 1 by 08:00, before leveling off at 1 until 09:00. As the clock strikes 10:00, the index rises to 2, signaling the onset of midday sun strength. The peak arrives between 12:00 and 14:00, where it holds a formidable 6, prompting sun protection measures for those outdoors. As the afternoon progresses, the intensity begins to wane, dropping to 4 by 15:00 and gently decreasing to 1 by 17:00. Finally, it retreats back to 0 by 19:00, marking the end of the sun's impact. Be vigilant during the midday hours for optimal sun safety!

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	6	high	25 min
14:00	6	high	25 min
15:00	4	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Castelli

The UV Index demonstrates significant seasonal variation, with extreme risk months occurring from January to March, as well as October to December, where the UV Index consistently reaches levels between 14 and 15, leading to a very short burn time of just 10 minutes. April marks a slight decline in the UV Index to 10, categorized as very high, while May and July present intermediate high-risk periods with indexes of 7 and 6, respectively, allowing for longer burn times of 25 minutes. As visitors and residents engage in outdoor activities, it's crucial to remain vigilant during these higher UV exposure months. Protective measures, such as wearing sunscreen, hats, and protective clothing, are highly recommended, especially during late fall and winter months when UV rays can still cause significant 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
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
Castelli	14	14	13	10	7	5	6	8	10	13	14	15
San Miguel de Tucuman UVI	15	14	13	10	7	5	6	7	10	13	15	15