UV Index in El Alto, Argentina

Last updated: May 3, 2025

In El Alto, Argentina, staying informed about the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding UV levels not only helps in preventing sunburns but also plays a vital role in promoting long-term skin health. With El Alto's BSh climate—characterized by intense sunlight and high altitudes—residents face increased UV exposure, particularly during midday hours when the index peaks at 7. By keeping an eye on the UV Index, you can make informed decisions about outdoor activities and protect yourself from potential skin damage.

Hourly UV Index in El Alto

During the day, the UV Index follows a dynamic pattern, peaking in the early afternoon. At 07:00, the index begins at a safe 0, gradually rising to 1 by 08:00. As the sun climbs higher, the values increase steadily—reaching 2 at 10:00 and then escalating to 4 by 11:00. The intensity spikes at 12:00, soaring to 6, before peaking at an impressive 7 at 13:00. The UV levels then begin to taper off, decreasing to 6 at 14:00 and further dropping to 5 by 15:00. As the afternoon wanes, the index declines to 3 at 16:00, and finally settles back at 1 by 17:00 and 18:00, before returning to 0 by 19:00. This hourly data highlights the importance of sun safety, especially during those peak hours when UV exposure is highest.

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	7	high	25 min
14:00	6	high	25 min
15:00	5	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 El Alto

The UV Index experiences significant seasonal fluctuations, with the highest risk months being January, February, March, October, November, and December, where the index reaches extreme levels of 15 and burn times are as short as 10 minutes. April and September also present considerable risk, categorized as very high with indices of 10, warranting a burn time of just 15 minutes. During the summer months of May, June, July, and August, the UV Index ranges from high to moderate, allowing for longer exposure times of up to 30 minutes in the latter months. It is crucial for visitors and residents to take protective measures during high-risk months, such as wearing sunscreen, sunglasses, and protective clothing, and to seek shade whenever possible to avoid harmful UV exposure.

Monthly Maximum UV Index for El Alto, Argentina

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

The table above highlights how UV exposure in El Alto 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 Alto'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
El Alto	15	14	13	10	7	5	5	7	10	13	15	15
San Miguel de Tucuman UVI	15	14	13	10	7	5	6	7	10	13	15	15