UV Index in Foz do Iguacu, Brazil

Last updated: June 2, 2025

Understanding the UV Index is essential for residents and visitors in Foz do Iguacu, Brazil, as it plays a crucial role in protecting your skin health and preventing sunburn. With a warm climate characterized by significant sunshine, the UV levels can fluctuate throughout the day, peaking at 5 during midday hours. This means that exposure during these times can pose a greater risk for skin damage. By staying informed about the UV Index, you can take proactive measures to enjoy the breathtaking beauty of Foz do Iguacu while safeguarding your skin from harmful UV rays. Remember, a little awareness goes a long way in keeping you safe under the Brazilian sun!

Hourly UV Index in Foz do Iguacu

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 Foz do Iguacu

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 Foz do Iguacu, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Foz do Iguacu. 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 Foz do Iguacu, 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 Foz do Iguacu UV Index with Other Brazil Cities

The table above highlights how UV exposure in Foz do Iguacu compares to other major locations across Brazil. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Foz do Iguacu's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Foz do Iguacu	15	15	13	10	7	5	6	8	10	13	15	14
Rio de Janeiro UVI	15	14	13	10	7	6	7	9	11	12	13	15
Sao Paulo UVI	16	15	12	11	8	6	7	9	11	13	14	15
Belo Horizonte UVI	17	16	14	12	9	7	8	10	12	13	14	16
Salvador UVI	14	14	14	13	10	9	9	12	12	15	15	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13