UV Index in Corumba, Brazil

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors of Corumbá, Brazil, where the sun can be relentless. With its tropical Aw climate, Corumbá experiences significant UV exposure that can lead to sunburn and long-term skin health issues if precautions aren't taken. From a peak UV Index of 8 around midday, awareness of daily UV levels is vital for protecting your skin and enjoying outdoor activities safely. Stay informed and make smart choices to safeguard your skin against the sun’s powerful rays!

Hourly UV Index in Corumba

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	6	high	25 min
15:00	4	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 Corumba

The UV Index reveals significant seasonal fluctuations, with the highest levels occurring from January to December, averaging between 15 and 16 in the winter months and dropping to 7 to 11 during the summer. The high-risk months, characterized by an extreme exposure category, are January, February, March, April, September, October, November, and December, where the burn time is notably short, often around 10 minutes. As such, visitors and residents are strongly advised to take precautionary measures, such as wearing sunscreen, protective clothing, and sunglasses during peak hours, particularly in these high-risk months, to prevent skin damage and ensure safe enjoyment of outdoor activities.

Monthly Maximum UV Index for Corumba, Brazil

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

The table above highlights how UV exposure in Corumba 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.

Corumba'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
Corumba	15	15	14	12	9	7	8	10	11	14	15	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