UV Index in Brasilia, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Brasilia, Brazil, is crucial for protecting your skin and maintaining overall health. With a tropical climate characterized by intense sunlight, awareness of UV levels can prevent painful sunburns and long-term skin damage. The UV Index reaches its peak at midday, showing values as high as 9—an indicator of very high exposure risk. Staying informed about these levels is essential for residents and visitors alike, ensuring a safer and healthier outdoor experience under the Brazilian sun.

Hourly UV Index in Brasilia

The UV Index today tells a compelling story of sun exposure throughout the day. Starting low at 1 by 07:00, it gradually climbs to a moderate 3 by 09:00. As the day progresses, the intensity peaks impressively at 9 around 12:00, signaling that the sun is at its most powerful. The afternoon remains vibrant but begins to taper off as we see a drop to 4 by 15:00. Post-sunset, the UV Index plummets to 0 between 18:00 and 19:00, indicating a retreat from harmful rays. It’s a day where staying sun-smart is crucial during the midday hours, especially between 10:00 and 14:00.

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	6	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	8	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 Brasilia

Throughout the year, UV Index levels exhibit notable fluctuations, with extreme exposure occurring consistently from January to April, culminating in a high of 16 during those months. As we transition into the summer months, the UV Index drops slightly in June and July to a very high category of 9 and 10, allowing for a slightly longer burn time of 15 minutes. However, August's return to an extreme rating of 12 and the subsequent months maintain high-risk exposure until November. Given these data, it is crucial for both visitors and residents to take proactive measures against UV radiation by seeking shade, wearing protective clothing, and applying sunscreen during the high-risk months, particularly from January to April and again in August through November, where burn times could be as short as 10 minutes.

Monthly Maximum UV Index for Brasilia, Brazil

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

The table above highlights how UV exposure in Brasilia 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.

Brasilia'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
Brasilia	16	16	15	13	11	9	10	12	14	15	15	16