UV Index in Posadas, Argentina

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Posadas, Argentina, where the warm Cfa climate invites outdoor activities year-round. Awareness of UV levels can significantly influence your sun protection strategies, helping to prevent painful sunburns and promote long-term skin health. With peak UV exposure reaching a level of 5 around noon, it’s essential to be vigilant about sun safety, particularly during the hotter months when the sun's rays can be especially intense. Embrace the beauty of Posadas while keeping your skin safe and protected!

Hourly UV Index in Posadas

As the day begins, the UV Index starts off low, peaking at 1 from 7:00 AM to 8:00 AM. However, by 9:00 AM, it climbs to 3, indicating a moderate increase in UV exposure. The real intensity is felt around 11:00 AM and 12:00 PM, where the index reaches its maximum of 5, suggesting a need for sun protection during these hours. As the afternoon progresses, the UV Index begins to decline, dropping to 2 by 3:00 PM and tapering off to 0 by 5:00 PM onwards, signaling a safe period to enjoy outdoor activities without concern for UV rays. Stay vigilant during the peak hours to keep your skin protected!

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	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	4	moderate	30 min
11:00	5	moderate	30 min
12:00	5	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	0	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Posadas

Over the course of the year, UV Index values show significant seasonal variation, with the highest levels occurring from January to March, where the UV Index ranges from 14 to 15, categorized as extreme, resulting in a quick burn time of just 10 minutes. The months of October and November also present high-risk conditions, maintaining an extreme exposure category. April marks a slight decline to a very high category at 10, while May through August see moderate to high values, with burn times extending from 25 to 30 minutes. As the year transitions into the cooler months, September sees an uptick to a very high category again. Residents and visitors should remain vigilant during the high-risk months of January, February, March, October, and November, taking precautions such as wearing sunscreen, protective clothing, and sunglasses, especially during peak sun hours, to avoid harmful UV exposure.

Monthly Maximum UV Index for Posadas, Argentina

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

The table above highlights how UV exposure in Posadas 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.

Posadas'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
Posadas	15	14	13	10	6	5	6	7	10	13	14	14
San Miguel de Tucuman UVI	15	14	13	10	7	5	6	7	10	13	15	15