UV Index in Imperatriz, Brazil

Last updated: July 2, 2025

Understanding the UV Index is essential for residents and visitors in Imperatriz, Brazil, where the sun's rays can be particularly intense due to its tropical climate. Solar radiation levels can peak at a high 11 during midday, making awareness of UV exposures critical for sunburn prevention and long-term skin health. By keeping an eye on the UV Index, you can better protect yourself and your loved ones from harmful effects like skin damage and increased risk of skin cancer. Stay informed and enjoy the beautiful sunny days in Imperatriz safely!

Hourly UV Index in Imperatriz

The UV Index throughout the day showcases a dramatic rise as the sun reaches its peak. Starting at a modest 1 at 7:00 AM, it climbs steadily, hitting 4 by 9:00 AM, and then surging to 11 by noon—the highest level of the day. This intense peak at 12:00 PM signals a critical time for sun safety, with values remaining elevated at 10 until 1:00 PM. As the afternoon progresses, the index gradually declines to 5 by 3:00 PM, and then drops further, reaching a low of 0 by 7:00 PM. It's clear that during the midday hours, especially between 10 AM and 2 PM, extra precautions are essential to protect against harmful UV exposure.

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	7	high	25 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Imperatriz

Throughout the year, UV Index readings remain notably high, with extreme levels recorded from January to April, consistently at 15, and only slightly decreasing in May and June, where it reaches 13 and 11, respectively. The summer months of July and August maintain high levels at 11 and 12, before increasing again in September and October. Notably, November and December also show high UV values of 14. This data indicates that the highest risk months for UV exposure are from January to April, where the UV Index remains at its peak. Therefore, it is crucial for visitors and residents alike to take precautions, such as wearing sunscreen, protective clothing, and sunglasses, as well as seeking shade during peak sun hours, to minimize the risk of skin damage year-round.

Monthly Maximum UV Index for Imperatriz, Brazil

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

The table above highlights how UV exposure in Imperatriz 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.

Imperatriz'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
Imperatriz	15	15	15	15	13	11	11	12	13	13	14	14