UV Index in Osorio, Brazil

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors in Osorio, Brazil, where the warm Cfa climate often leads to elevated sun exposure risks. As UV levels can reach up to 5 during midday hours, being informed about these readings is essential for preventing sunburn and promoting long-term skin health. With the sun's intensity peaking around noon, taking precautions during these hours can help you enjoy the beautiful weather without compromising your well-being. Stay savvy about the UV Index to protect your skin and embrace the vibrant outdoor lifestyle of Osorio!

Hourly UV Index in Osorio

At dawn, the UV Index begins at a gentle 0 by 07:00, indicating minimal exposure risk. As the sun rises higher, the index steadily climbs, reaching 1 at 08:00 and peaking at 5 between 12:00 and 13:00, when the sun’s rays are at their most intense. During these peak hours, it’s wise to don your sunscreen and protective gear. Following this zenith, the index gracefully descends, dropping to 4 at 14:00 and tapering off to 2 by 15:00. As the afternoon fades to evening, the UV levels reduce significantly, returning to a safe 0 by 18:00. This hourly UV pattern underscores the importance of sun safety during peak daylight 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	3	moderate	30 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	7	high	25 min
13:00	7	high	25 min
14:00	5	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 Osorio

The UV Index exhibits significant seasonal fluctuations, with extreme levels recorded from January to March and again in November and December, where burn times are as short as 10 minutes. The high-risk months are January, February, March, October, November, and December, during which protective measures are crucial due to the extreme UV exposure category. From April to August, the UV levels decrease slightly, with burn times extending to 15-30 minutes, but caution is still advised, particularly in April and September when UV levels reach very high. Visitors and residents are strongly encouraged to wear sunscreen, protective clothing, and sunglasses year-round, especially during the peak UV months, to minimize the risk of skin damage and maintain overall health.

Monthly Maximum UV Index for Osorio, Brazil

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

The table above highlights how UV exposure in Osorio 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.

Osorio'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
Osorio	14	13	12	9	6	5	5	7	9	12	14	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