UV Index in Cassia, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Cassia, Brazil, where the climate brings both warmth and potential risks from sun exposure. With the UV Index peaking at 8 during midday hours, awareness of the UV levels can significantly aid in preventing sunburn and protecting your skin health. Cassia's Cwa climate, characterized by distinct wet and dry seasons, can lead to fluctuating UV exposures, making it essential to stay informed and take necessary precautions. By staying vigilant about UV Index readings, you can enjoy the beautiful sun safely while minimizing the risk of harmful effects on your skin.

Hourly UV Index in Cassia

At dawn, the UV Index remains low, peaking at 1 by 08:00. As the sun rises higher, a notable increase occurs, reaching 3 at 09:00 and escalating dramatically to a maximum of 8 from 12:00 to 13:00. This midday surge indicates a higher risk for sun exposure, making it essential to take precautions such as wearing sunscreen and protective clothing. The intensity then gradually declines, dropping to 4 by 15:00, and continuing its descent to 0 by 19:00, marking the end of the sun’s peak influence for the day. Stay mindful of these hourly fluctuations to enjoy the sun safely!

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	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	4	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 Cassia

The UV Index data reveals significant seasonal variations in sun exposure, with the highest UV levels occurring from November to March, maintaining an extreme exposure category. Notably, January, February, and March all show a peak UV Index of 16, signifying a burn time of just 10 minutes. Conversely, a decline in UV levels is observed during the summer months, particularly June and July, where the Index drops to 7 and 8, respectively, indicating a slightly reduced risk but still classified as very high. To ensure safety, visitors and residents should remain vigilant during the high-risk months of January to March, as well as August and November when UV levels soar again, advising the use of appropriate sun protection measures, including sunscreen, protective clothing, and seeking shade whenever possible.

Monthly Maximum UV Index for Cassia, Brazil

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

The table above highlights how UV exposure in Cassia 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.

Cassia'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
Salvador UVI	14	14	14	13	10	9	9	12	12	15	15	14
Cassia	16	16	14	12	9	7	8	11	12	14	15	17
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13