UV Index in Antonina, Brazil

Last updated: June 2, 2025

In Antonina, Brazil, understanding the UV Index is crucial for safeguarding your skin against harmful sun exposure. With typical UV levels peaking at 6 around midday, awareness can significantly aid in preventing sunburn and promoting overall skin health. The region’s Cfa climate not only brings warm temperatures but also increased UV risks, especially during the sunniest hours. By staying informed about the UV Index, you can enjoy the beautiful outdoors while taking necessary precautions to protect yourself and stay healthy.

Hourly UV Index in Antonina

The UV Index today showcased a notable increase from the early morning hours, starting at a gentle 1 at 07:00 and 08:00. As the sun rose higher in the sky, the index climbed steadily, reaching a significant 6 by 12:00, indicating a peak in UV radiation and the need for sun protection. The afternoon saw a slight decline, with values dropping to 4 at 14:00 and falling further to 2 by 15:00. As the day wound down, the UV index returned to a safer range, ending the day at 0 by 19:00. It’s crucial to stay informed and safeguard your skin during those high UV 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	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	5	moderate	30 min
12:00	6	high	25 min
13:00	5	moderate	30 min
14:00	4	moderate	30 min
15:00	2	low	45 min
16:00	1	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 Antonina

Throughout the year, the UV Index varies significantly, peaking in the winter and late autumn months. From January to April, the UV Index remains at a dangerous level, reaching as high as 15 in January and December, and remaining in the extreme exposure category with a burn time of only 10 minutes. As the year progresses into May and June, the risk decreases slightly, with a UV Index of 7 to 6, classified as high, allowing for 25 minutes of safe exposure. However, August sees a spike to 8 in the very high exposure category, reducing burn time to just 15 minutes. The risk resurges in September and October as the index returns to extreme levels, demanding caution with again only 10 minutes before burn. Residents and visitors should take extra precautions during these high-risk months, particularly from January to April and again in September and October. It’s advisable to apply sunscreen, wear protective clothing, and limit outdoor activities during peak UV times.

Monthly Maximum UV Index for Antonina, Brazil

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

The table above highlights how UV exposure in Antonina 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.

Antonina'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
Rio de Janeiro UVI	15	14	13	10	7	6	7	9	11	12	13	15
Antonina	15	14	13	11	7	6	6	8	11	13	14	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