UV Index in Ouro Branco, Brazil

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Ouro Branco, Brazil, as it plays a significant role in protecting your skin and overall health. With the city's Cwa climate and high UV exposure, particularly during peak hours (from 10 AM to 2 PM), awareness of UV levels can help prevent painful sunburns and reduce long-term skin damage. As UV levels frequently reach 7—indicating high risk—it's essential to stay informed and take protective measures to enjoy the sun safely.

Hourly UV Index in Ouro Branco

The UV Index data paints a clear picture of how exposure to ultraviolet rays varies throughout the day. Starting at a low level of 1 at 07:00, the index gradually climbs to peak at 7 from 11:00 to 12:00, indicating the times when sun protection is most crucial. As the afternoon progresses, the index dips to 6 at 13:00, then gently declines to 4 by 14:00. The evening hours see a significant drop, with values falling to 2 at 15:00 and retreating to 1 at 16:00. By nightfall, the UV Index drops to 0 from 18:00 onward, signalling a safe time for outdoor activities without the need for sun protection. Enjoy the sunshine, but be mindful of the peak 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	2	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	7	high	25 min
13:00	6	high	25 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 Ouro Branco

Throughout the year, the UV Index reveals significant seasonal variations, with extreme levels prevalent from January to April and again in August through November. The highest values peak during the winter and early spring months, notably reaching a striking 17 in January and 16 in December, indicating extreme risk with a burn time of just 10 minutes. The months of May and July present lower peaks, categorized as very high, with burn times extending slightly to 15 and 25 minutes respectively. Residents and visitors should take extra precautions during the high-risk months of January, February, March, April, August, September, October, and November. Protecting skin with sunscreen, hats, and clothing is crucial, especially during peak hours, to minimize the risk of harmful UV exposure.

Monthly Maximum UV Index for Ouro Branco, Brazil

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

The table above highlights how UV exposure in Ouro Branco 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.

Ouro Branco'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
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
Ouro Branco	17	15	14	12	9	7	8	11	12	14	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