UV Index in Lujan, Argentina

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of Luján, Argentina, where sun exposure can vary significantly throughout the day. Awareness of UV levels is vital not only for preventing sunburn but also for safeguarding long-term skin health. Luján enjoys a semi-arid climate (BSh), characterized by plenty of sunshine, which means that UV radiation can reach potentially harmful levels, especially between midday and early afternoon. By staying informed about the UV Index, you can take proactive measures to protect yourself from excessive sunlight and enjoy the beautiful weather safely.

Hourly UV Index in Lujan

The UV Index experienced a steady rise through the morning hours, beginning at a mere 0 at 07:00, and creeping up to 6 by 13:00, marking the peak of the day. At 10:00, the index reached 2, escalating quickly to 5 by noon. From there, it hit its highest point at 6 during the early afternoon, before gradually declining towards evening. By 16:00, the index dropped to 3, signaling a return to safer levels, finishing the day at 0 by 19:00. Overall, the day showcased significant UV activity, emphasizing the importance of sun protection during peak hours.

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	5	moderate	30 min
13:00	6	high	25 min
14:00	5	moderate	30 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 Lujan

Throughout the year, UV levels fluctuate significantly, with high-risk months spanning from January to April and again in October to November, where the UV Index reaches extreme levels of 15 and 14, respectively, resulting in a rapid burn time of only 10 minutes. From March to September, the exposure remains a concern, particularly in April and September when the index is rated very high (8 and 9), allowing for 15 to 25 minutes of safe exposure. Advise visitors and residents to take precautionary measures during these peak months, such as seeking shade, wearing protective clothing, and using sunscreen with a high SPF, especially between 10 a.m. and 4 p.m. when the sun is strongest. Staying vigilant about UV exposure throughout the year is essential for maintaining skin health.

Monthly Maximum UV Index for Lujan, Argentina

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

The table above highlights how UV exposure in Lujan 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.

Lujan'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
Lujan	15	14	12	8	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