UV Index in Barra, Brazil

Last updated: July 2, 2025

Understanding the UV Index in Barra, Brazil is essential for anyone looking to enjoy the sun safely. With peak values soaring to 11 during midday hours, awareness of UV levels can significantly reduce the risk of sunburn and long-term skin damage. Given Barra's tropical climate, where exposure to strong sunlight is frequent, knowing how to protect your skin can enhance your outdoor experiences. Whether you're lounging on the beach or exploring the vibrant surroundings, staying informed about the UV Index helps ensure that your time under the sun is both enjoyable and safe.

Hourly UV Index in Barra

As the sun rises, the UV Index steadily increases, starting at a mild 1 at 7:00 AM. By 9:00 AM, it surges to a moderate 5, signaling the need for some sun protection. The intensity peaks dramatically at 12:00 PM with a daunting 11, marking the height of solar exposure where precautions are essential. As the afternoon progresses, the index begins to decline, but still remains significant at 9 by 1:00 PM. By 3:00 PM, it drops to 4, and the late afternoon sees it further fade to a gentle 1 by 5:00 PM. By sunset, the UV Index diminishes to 0, providing a reassuring end to a day of sun. Stay safe and enjoy the sunshine!

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	11	extreme	10 min
13:00	9	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 Barra

Throughout the year, the UV Index shows significant seasonal variations with consistently high to extreme levels from January to November, peaking at 15 in both January and November. The highest risk months for UV exposure are January, February, March, and November, all categorized as extreme, where sunburn can occur in as little as 10 minutes. From June to August, while the UV Index lowers slightly to a very high level of 10 to 12, caution is still necessary as the burn time remains around 10 to 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing protective clothing, applying sunscreen, and seeking shade to minimize the risk of harmful UV exposure.

Monthly Maximum UV Index for Barra, Brazil

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

The table above highlights how UV exposure in Barra 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.

Barra'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
Barra	15	14	15	14	12	10	11	12	13	14	15	15