UV Index in Brasilia, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Brasilia, Brazil is crucial for protecting your skin from harmful ultraviolet radiation. With the city’s tropical savanna climate (Aw), residents and visitors face varying UV levels that can spike significantly during midday hours, reaching a peak of 11 from 12:00 PM to 1:00 PM. Being aware of these UV levels is essential not only for preventing painful sunburns but also for maintaining long-term skin health. As you enjoy the bright sunshine, keep an eye on the UV Index and take the necessary precautions to shield yourself from potential skin damage.

Hourly UV Index in Brasilia

As the day dawns, the UV Index starts at a mild 1 at 7:00 AM, gradually climbing to 2 by 8:00 AM. By 9:00 AM, it quickly rises to 4, signaling a more pronounced sun exposure. The peak intensity is reached at 12:00 PM with a striking 11, indicating a high risk of harm from unprotected sun exposure. Fortunately, this intensity decreases throughout the afternoon, dropping to 4 by 3:00 PM and further to 2 by 4:00 PM. As the sun sets, the UV Index falls to 0 after 6:00 PM, bringing relief as daylight fades. To make the most of sun exposure, plan outdoor activities during the morning or early afternoon while remaining mindful of peak 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	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	7	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