UV Index in El Calafate, Argentina

Last updated: July 2, 2025

In El Calafate, Argentina, being aware of the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding UV levels is essential not just for preventing painful sunburns, but also for maintaining long-term skin health. Located in a semi-arid climate (BSk), El Calafate experiences unique UV exposure risks, especially during peak hours when indices can rise to moderate levels. By staying informed about the varying UV Index throughout the day, you can enjoy the stunning landscapes of Patagonia while protecting your skin from the potential dangers of overexposure.

Hourly UV Index in El Calafate

The UV Index data reveals a gradual increase in solar intensity throughout the day, beginning with a low level of 0 at dawn. As the clock ticks towards midday, the index rises to 1 by 10:00 AM, signaling the first hints of sunlight’s power. By 1:00 PM, the UV Index peaks at a moderate level of 2, remaining steady into the afternoon before gradually tapering off. As the sun begins to set at around 7:00 PM, the index dips back down to 0, marking the end of a day characterized by mild solar exposure. It’s wise to gear up with protection during those midday hours if you’re venturing outdoors!

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	0	low	45 min
10:00	1	low	45 min
11:00	1	low	45 min
12:00	1	low	45 min
13:00	2	low	45 min
14:00	2	low	45 min
15:00	2	low	45 min
16:00	1	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 El Calafate

Throughout the year, seasonal UV changes highlight significant fluctuations in ultraviolet radiation levels. The high-risk months are typically January, February, October, and November, where the UV Index reaches extremes, peaking at 12 in January and December, with a burn time of just 10 minutes. In contrast, May and June feature the lowest UV exposure at an index of 2 with a longer burn time of 45 minutes. For the safest experience, visitors and residents should take extra precautions in high-risk months by seeking shade, wearing sunscreen, and donning protective clothing, especially during midday hours when UV rays are most intense.

Monthly Maximum UV Index for El Calafate, Argentina

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

The table above highlights how UV exposure in El Calafate 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.

El Calafate'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
El Calafate	12	10	7	4	2	1	2	4	5	8	13	12
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