UV Index in Imperatriz, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Imperatriz, Brazil, where the tropical climate brings plenty of sunshine and associated risks. With peak UV levels often reaching a staggering 13 during midday, awareness of these readings is essential for sunburn prevention and maintaining skin health. The impact of UV exposure can lead to long-term skin issues, making it vital for locals to track UV levels throughout the day. By being informed about the UV Index, residents can enjoy the beautiful weather while taking necessary precautions against harmful rays.

Hourly UV Index in Imperatriz

The UV Index shows a dramatic rise throughout the morning, starting at a low 1 at 7:00 AM and reaching a peak of 13 by noon. The intensity of the sun makes its presence felt, especially between 11:00 AM and 12:00 PM, when the UV Index hits its maximum of 13—a clear signal to take extra precautions. As the afternoon progresses, the UV levels begin to decline, dropping to 5 by 3:00 PM, before tapering off to 0 by 7:00 PM. This data underscores the importance of being mindful of sun exposure, particularly during the peak hours from 10:00 AM to 2:00 PM, when UV radiation is at its strongest.

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