UV Index in Puerto Iguazu, Argentina

Last updated: June 2, 2025

In Puerto Iguazú, Argentina, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels empowers residents and visitors alike to prevent sunburn and long-term skin damage, making it an essential part of outdoor planning. With a Cfa climate characterized by warm, humid temperatures, Puerto Iguazú experiences notable UV exposure, particularly during midday hours when the index peaks at 5. Knowledge of these UV patterns allows you to enjoy the stunning natural beauty of this region while effectively protecting yourself from harmful rays.

Hourly UV Index in Puerto Iguazu

The UV Index varies significantly throughout the day, starting from 0 at 07:00, indicating minimal risk. As the sun climbs higher, it peaks at 5 between 12:00 and 13:00, signaling a moderate risk for sun exposure; this is the perfect time to slather on that sunscreen! The index then gradually descends, dipping to 3 at 15:00, and further down to 1 by 17:00. As daylight fades, the UV Index drops back to 0 by 18:00, marking a safe end to sun-related concerns for the day. Stay sun-smart and plan your outdoor activities accordingly!

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	2	low	45 min
10:00	3	moderate	30 min
11:00	4	moderate	30 min
12:00	5	moderate	30 min
13:00	5	moderate	30 min
14:00	4	moderate	30 min
15:00	3	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Puerto Iguazu

Throughout the year, UV exposure levels significantly fluctuate, with January to April marking the highest risk months. The UV Index peaks at 15 in January, February, and November, categorizing these months within the extreme exposure category, where a burn can occur in just 10 minutes. Even in March and October, the UV Index remains dangerously high at 13 and 14, respectively. April experiences a slight decrease to a very high exposure level (UV Index 10), but May dips further to a high category (UV Index 7) with a burn time of 25 minutes. As summer arrives, June sees a moderate index of 5, gradually increasing to high levels again in July and August. Visitors and residents are strongly advised to take precautions during these high-risk months, such as wearing sunscreen, protective clothing, and sunglasses, while limiting sun exposure, especially during peak hours.

Monthly Maximum UV Index for Puerto Iguazu, Argentina

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

The table above highlights how UV exposure in Puerto Iguazu 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.

Puerto Iguazu'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
San Miguel de Tucuman UVI	15	14	13	10	7	5	6	7	10	13	15	15
Puerto Iguazu	15	15	13	10	7	5	6	8	10	13	15	14