UV Index in Rio Casca, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Rio Casca, Brazil is essential for protecting your skin and overall health. With its warm Aw climate, residents and visitors alike should be aware of daily UV levels to prevent sunburn and long-term skin damage. The UV Index can reach a maximum of 9 during midday hours, highlighting the importance of sun safety measures throughout the day. By staying informed about UV exposure risks, you can enjoy the vibrant sun while keeping your skin safe and healthy.

Hourly UV Index in Rio Casca

As the day unfolds, the UV Index experiences a notable rise, peaking at 9 during the noon hour. Starting from a gentle 1 at 7:00 AM, it escalates steadily, reaching 7 by 10:00 AM and 8 by 11:00 AM. The intensity continues to surge, hitting its zenith of 9 at 12:00 PM, before gradually tapering off in the afternoon. By 3:00 PM, it dips to 3, and as the sun begins to set, the index drops to a low 0 by 7:00 PM, signifying a swift decline in UV radiation. This pattern underscores the importance of sun safety during the peak hours of 10:00 AM to 2:00 PM, when UV exposure is at its highest. Stay protected and enjoy the sun wisely!

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	4	moderate	30 min
10:00	7	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	7	high	25 min
14:00	5	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 Casca

Throughout the year, the UV Index demonstrates significant seasonal variations, with January through April consistently classified under the extreme exposure category, peaking at 16 in January and December. The high-risk months include January, February, March, April, September, October, November, and December, where a rapid onset of sunburn can occur in as little as 10 minutes. In contrast, May through August display slightly lower indices, ranging from 7 to 10, classified as high to very high, with burn times increasing to 15 to 25 minutes. To ensure safety, both visitors and residents are advised to take proper precautions during these high-risk months, such as wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure during peak hours.

Monthly Maximum UV Index for Rio Casca, Brazil

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

The table above highlights how UV exposure in Rio Casca 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 Casca'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
Rio Casca	16	15	14	12	9	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