UV Index in Bambui, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Bambui, Brazil, where the climate falls under the Cwa zone, characterized by distinct wet and dry seasons. With daytime UV levels peaking at 8 during midday hours, awareness of these levels is essential for effective sunburn prevention and maintaining long-term skin health. The sun's intensity in Bambui, especially from 10 AM to 2 PM, poses significant risks, making it vital to stay informed about UV exposure to protect yourself and enjoy the beautiful sunny days safely.

Hourly UV Index in Bambui

As the sun rises, the UV Index remains low in the early hours, peaking at 1 between 07:00 and 08:00. However, as the day progresses, the intensity escalates dramatically. By 10:00, it reaches a moderate 6, surging to a maximum of 8 from 11:00 to 13:00—the peak time for sun exposure. Just before the afternoon wanes, the index begins to gently decline, dropping to 6 at 14:00, 4 at 15:00, and further down to 2 by 16:00. As evening approaches, the risk diminishes significantly, easing to 1 by 17:00 and falling to 0 by 18:00 and 19:00. It’s a clear reminder that while midday offers the highest sun exposure, the UV risk decreases as the sun sets.

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	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	8	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 Bambui

The UV Index experiences significant fluctuations throughout the year, with extreme levels recorded from January to April and again in August through November. Notably, the highest risk months are January, February, and March, where the UV Index peaks at 16 and a mere 10 minutes of exposure can lead to sunburn. As the season progresses into summer, the risk decreases slightly, with June showing a high index of 7 and a longer burn time of 25 minutes. However, visitors and residents should remain cautious, especially during the very high months of May and July, when the burn time reduces back to 15 minutes. Overall, it is crucial for everyone to take protective measures against UV exposure year-round, particularly in these high-risk months, by using sunscreen, wearing protective clothing, and seeking shade during peak hours.

Monthly Maximum UV Index for Bambui, Brazil

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

The table above highlights how UV exposure in Bambui 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.

Bambui'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
Bambui	16	16	14	12	9	7	8	11	13	14	15	16
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13