UV Index in Cachoeiras de Macacu, Brazil

Last updated: July 2, 2025

In Cachoeiras de Macacu, Brazil, being aware of the UV Index is crucial for safeguarding your skin and overall health. With typical values peaking at 7 during midday, understanding these levels is essential for preventing sunburn and long-term skin damage. The Cfa climate in this region typically brings warm, sunny days, increasing the risk of UV exposure, especially between 10:00 AM and 2:00 PM. By staying informed about the UV Index, you can make proactive choices to enjoy the sun safely while protecting your skin.

Hourly UV Index in Cachoeiras de Macacu

The UV Index throughout the day paints a vivid picture of sun intensity, starting at a modest 1 at 07:00 and gradually climbing to its peak of 7 from 11:00 to 13:00. This high level signifies a heightened risk for prolonged sun exposure, perfect for sun lovers but cautionary for the rest. From the peak, the index starts to dip, dropping to 5 at 14:00 and dwindling to 1 by 16:00. As the sun begins to set, the UV Index plummets to 0 by 18:00 and remains in the safe zone through the evening. Plan your outdoor activities wisely, ensuring midday sun protection while enjoying the earlier and later 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	2	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	7	high	25 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 Cachoeiras de Macacu

Throughout the year, the UV Index experiences substantial fluctuations, with high-risk months typically being from January to April, as well as September to November, where the index peaks at 16 in January and December, indicating extreme exposure levels with a burn time of just 10 minutes. Visitors and residents should take caution during these months, particularly from mid-winter through spring, and again in the fall. The transition into late spring and early summer sees a significant drop, with the UV Index ranging from 6 to 9, classifying it as high to very high with slightly longer burn times of 15 to 25 minutes. It is vital for everyone to remain vigilant about sun protection year-round, wearing appropriate clothing, applying sunscreen, and seeking shade, especially during peak UV hours in the high-risk months.

Monthly Maximum UV Index for Cachoeiras de Macacu, Brazil

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

The table above highlights how UV exposure in Cachoeiras de Macacu 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.

Cachoeiras de Macacu'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
Cachoeiras de Macacu	16	15	14	11	8	6	7	9	12	13	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