UV Index in Santa Fe do Sul, Brazil

Last updated: July 2, 2025

Awareness of the UV Index in Santa Fe do Sul, Brazil, is crucial for protecting your skin and maintaining overall health. Understanding the UV levels helps to prevent sunburn and reduces the risk of long-term skin damage, making it essential for outdoor enthusiasts and residents alike. With a tropical climate characterized by strong sun exposure, Santa Fe do Sul experiences varying UV levels throughout the day, peaking dramatically between 11 AM and 1 PM when the index reaches as high as 8. Stay informed to enjoy the sun responsibly and keep your skin healthy!

Hourly UV Index in Santa Fe do Sul

During the day, the UV Index displays a clear progression, peaking in intensity as time goes on. At 7:00 AM, the index starts at a modest level of 1, indicating minimal risk. By 10:00 AM, it rises sharply to 5, signaling a need for sun protection. The index reaches its zenith between 12:00 PM and 1:00 PM at a notable 8, suggesting that precautions are essential during these hours to prevent skin damage. As the afternoon progresses, it begins to wane, dropping to 6 by 2:00 PM and declining further through the afternoon, reaching 0 by 6:00 PM. Such fluctuations highlight the importance of monitoring UV levels throughout the day to stay safe while enjoying the sun.

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	2	low	45 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 Santa Fe do Sul

The seasonal UV changes indicate that exposure levels are consistently high, particularly from January to April, where the UV Index remains in the extreme category, peaking at 16 in February and December. High-risk months include January, February, March, April, September, October, and November, as they all feature an extreme UV Index that can lead to sunburn in as little as 10 minutes. Conversely, the summer months of May, June, July, and August experience a drop to very high and high categories, with slightly longer burn times of 15 to 25 minutes. Visitors and residents should take precautions during all months, especially in extreme UV conditions, by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize the risk of skin damage.

Monthly Maximum UV Index for Santa Fe do Sul, Brazil

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

The table above highlights how UV exposure in Santa Fe do Sul 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.

Santa Fe do Sul'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
Santa Fe do Sul	15	16	13	11	8	7	8	10	12	14	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