UV Index in Manaus, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Manaus, Brazil is crucial for safeguarding your skin health and preventing sunburn, particularly given the region's tropical climate. With UV levels reaching as high as 12 during midday, awareness of daily fluctuations in UV exposure can help residents and visitors take necessary precautions to enjoy the sun safely. As the sun shines brightly in Manaus, knowing when to seek shade or apply sunscreen becomes essential in minimizing the risks associated with prolonged sun exposure. Stay informed and protect your skin under the vibrant Amazonian sun!

Hourly UV Index in Manaus

At dawn, the UV Index starts off low at 1 at 07:00, but as the sun rises, so does the intensity of UV radiation. By 09:00, it reaches 5, climbing rapidly to a peak of 12 at 12:00. The midday sun is fierce, with the UV Index hitting its maximum of 11 at 11:00 and slightly dropping to 8 by 14:00. As the afternoon progresses, the index declines steadily, returning to a more moderate 5 at 15:00, then tapering off to 2 by 16:00. The day concludes with a safe 1 at 17:00 and fades to 0 from 18:00 onwards, indicating a reprieve from UV exposure. Remember to protect your skin during those peak hours!

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	5	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 Manaus

The UV Index displays extreme levels throughout the year, peaking at 16 from January to April, and slightly decreasing during the summer months to 11 in July and August. Notably, January through April are identified as high-risk months due to the consistently high UV levels, with a burn time of only 10 minutes before skin damage can occur. Visitors and residents are strongly advised to take precautionary measures during these months, such as wearing broad-spectrum sunscreen, protective clothing, and UV-blocking sunglasses, to mitigate the risks associated with intense UV exposure. As the UV Index remains elevated into the fall and winter months, continued vigilance is essential for skin protection year-round.

Monthly Maximum UV Index for Manaus, Brazil

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

The table above highlights how UV exposure in Manaus 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.

Manaus'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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Manaus	15	16	16	16	13	12	11	11	13	13	14	13