UV Index in Alvares Machado, Brazil

Last updated: May 3, 2025

In Alvares Machado, Brazil, being aware of the UV Index is crucial for safeguarding your skin health and preventing sunburn. Understanding UV levels helps you make informed decisions about sun exposure and protection, especially during the peak hours when ultraviolet rays are strongest. With the city's Cfa climate, residents and visitors can experience significant UV exposure, particularly between 11:00 AM and 1:00 PM, when the index peaks at 8. By staying informed about the UV Index, you can enjoy the sunny Brazilian weather while minimizing risks to your skin.

Hourly UV Index in Alvares Machado

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 Alvares Machado

Throughout the year, UV Index values exhibit significant variability, with the highest levels typically observed in the winter and late fall months. Notably, January, February, and March all carry an extreme exposure category with a UV Index of 15, while December peaks at 16, also within the extreme range. High-risk months include September and November, seeing extreme levels at 11 and 14, respectively. Visitors and residents are strongly advised to take precautions during these high-risk periods, particularly between January and March, ensuring appropriate sun protection measures such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the UV exposure is most intense.

Monthly Maximum UV Index for Alvares Machado, Brazil

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

The table above highlights how UV exposure in Alvares Machado 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.

Alvares Machado'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
Alvares Machado	15	15	13	11	8	7	7	10	11	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