UV Index in Santa Teresa, Brazil

Last updated: July 2, 2025

Understanding the UV Index in Santa Teresa, Brazil is essential for protecting your skin from harmful ultraviolet rays. With the region's tropical climate, UV levels can peak significantly, particularly between 10 AM and 2 PM, where values soar to 8, indicating a high risk of sunburn. Being aware of the UV Index helps residents and visitors alike take proactive measures to prevent sunburn and maintain long-term skin health. As you explore Santa Teresa’s beautiful landscapes, keep an eye on the UV levels to enjoy the sun safely!

Hourly UV Index in Santa Teresa

As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.

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	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	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 Santa Teresa

During the year, UV Index levels demonstrate significant seasonal fluctuations, with the highest values occurring from January to March, where the index remains at 15, indicating an extreme risk of harm from unprotected sun exposure. Particularly high-risk months include January, February, March, April, September, October, November, and December, all of which carry an extreme exposure category and a rapid burn time of just 10 minutes. May to August sees a slight decrease, with UV Index values ranging from 7 to 9, categorized as high to very high, with burn times extending to 15 to 25 minutes. Given these conditions, it’s crucial for both visitors and residents to take proactive measures such as wearing sunscreen, protective clothing, and seeking shade, especially during the peak months. Safety is paramount, and reducing sun exposure during the highest index periods is strongly advised.

Monthly Maximum UV Index for Santa Teresa, Brazil

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

The table above highlights how UV exposure in Santa Teresa 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 Teresa'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 Teresa	15	15	13	11	9	7	8	10	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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13