UV Index in Marataizes, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Marataizes, Brazil, where the sun’s powerful rays can pose significant risks, especially during peak hours. With the region’s tropical climate in the Aw zone, UV levels often reach their highest intensity around midday, making sunburn prevention and skin health essential concerns. By being aware of daily UV fluctuations, you can take proactive steps to protect your skin from harmful effects, ensuring your time in this beautiful coastal area remains enjoyable and safe. From maximum values of 8 at midday to more manageable levels later in the day, knowing when to seek shade or apply sunscreen is vital for maintaining your well-being under the sun.

Hourly UV Index in Marataizes

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 Marataizes

The UV Index experiences significant seasonal fluctuations, peaking from January through April, where it reaches levels classified as extreme (UV Index 16 to 11) with a burn time of just 10 minutes. The months of September to December also show extreme conditions, particularly in October and November, both with a UV Index of 14. Conversely, during the summer months of May to August, the UV Index drops to very high (UV Index 8 to 10), allowing for slightly longer burn times of 15 to 25 minutes. Visitors and residents should remain vigilant during high-risk periods, especially from January to April and September to November, and take necessary precautions such as wearing sunscreen, protective clothing, and seeking shade to minimize the risk of UV exposure.

Monthly Maximum UV Index for Marataizes, Brazil

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

The table above highlights how UV exposure in Marataizes 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.

Marataizes'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
Marataizes	16	15	13	11	8	7	8	10	12	14	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