UV Index in Casa Branca, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Casa Branca, Brazil is crucial for safeguarding your skin health, especially given the region's Cfa climate, characterized by warm summers and mild winters. With UV levels peaking at 8 between 11 AM and 12 PM, awareness of these levels is essential to prevent sunburn and long-term skin damage. By staying informed about the UV Index, residents and visitors can take necessary precautions during peak hours, ensuring a safe and enjoyable outdoor experience in the vibrant landscapes of Casa Branca.

Hourly UV Index in Casa Branca

The UV Index throughout the day shows a clear peak around midday, with values reaching 8 at both 11:00 and 12:00. This indicates a high level of UV radiation, making it crucial for outdoor activities to include sun protection during this time frame. As the sun rises, the index starts at a modest 1 at 07:00, gradually climbing to 6 by 10:00 before hitting its maximum in the early afternoon. Post-peak hours see a noticeable decline, dropping to 3 by 15:00 and further down to 0 by 19:00, highlighting a significant decrease in UV exposure as the day winds down. Overall, it’s essential to stay safe and protected during the most intense hours of sunshine!

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	6	high	25 min
11:00	8	very high	15 min
12:00	8	very high	15 min
13:00	7	high	25 min
14:00	6	high	25 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 Casa Branca

The UV Index demonstrates notable seasonal fluctuations, indicating that January through April poses a high-risk period for sun exposure, with an extreme rating of 16-13, and a very short burn time of just 10 minutes. Visitors and residents should be particularly cautious during these months, as well as in September to November, which also show extreme UV levels with a burn time of 10 minutes. In contrast, May through August presents a very high risk with slightly longer burn times of 15-25 minutes, peaking in July. As such, regardless of the season, it is crucial to apply sunscreen diligently, wear protective clothing, and limit sun exposure, especially during midday hours, to safeguard against skin damage and other UV-related health issues.

Monthly Maximum UV Index for Casa Branca, Brazil

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

The table above highlights how UV exposure in Casa Branca 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.

Casa Branca'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
Casa Branca	16	16	13	11	8	7	8	10	12	13	14	16
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