UV Index in Rio do Sul, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Rio do Sul, Brazil, as it provides essential information about sun exposure and helps prevent skin damage. With the region's Cfa climate, characterized by warm summers and mild winters, knowing the UV levels can significantly influence your outdoor activities and skin health. The UV Index peaks at 6 around noon, indicating a higher risk of harm, including sunburn, if proper precautions are not taken. By monitoring UV levels, you can enjoy the beautiful Brazilian sun while safeguarding your skin against potential harm. Stay informed and protect yourself from the sun’s powerful rays!

Hourly UV Index in Rio do Sul

The UV Index over the day shows a dynamic range of exposure, starting off calm in the early hours. At 07:00 and 08:00, it remains at a gentle 1, perfect for a leisurely morning. As the sun climbs higher, the index rises steadily, reaching 2 by 09:00 and peaking at 6 around 12:00, indicating caution is necessary for outdoor activities. The intensity slightly dips from there, down to 5 by 13:00 and then to 4 at 14:00, before gradually decreasing to 1 by 16:00. Finally, the UV exposure diminishes to 0 by 18:00, signaling a safe end to the day. Stay mindful of those peak hours for a fun and safe experience in the sun!

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	3	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	3	moderate	30 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 Rio do Sul

Throughout the year, UV Index levels fluctuate significantly, with the highest risk months occurring from January to March and November to December, where the UV Index consistently reaches extreme levels of 14 to 15 and a burn time of just 10 minutes. In April, the index slightly decreases to 10, categorized as very high, allowing for a burn time of 15 minutes. As summer arrives, UV levels moderate to 5 to 7 in June and May, transitioning into higher risks again in August and September with UV Indices of 8 to 11. Visitors and residents are strongly advised to take precautions during high-risk months—especially between January and March, as well as September and October—by wearing protective clothing, applying sunscreen regularly, and seeking shade to minimize UV exposure.

Monthly Maximum UV Index for Rio do Sul, Brazil

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

The table above highlights how UV exposure in Rio do Sul 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.

Rio do Sul'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 do Sul	15	14	12	10	7	5	6	8	11	13	15	15
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