UV Index in Barreirinha, Brazil

Last updated: July 2, 2025

In Barreirinha, Brazil, understanding the UV Index is crucial for maintaining skin health and preventing sunburn. With its tropical climate, Barreirinha experiences significant UV exposure, especially between 10 AM and 2 PM, when the index peaks at an intense 11. By staying informed about UV levels, residents and visitors can take appropriate precautions to shield themselves from harmful rays, ensuring a safer and healthier experience outdoors. Awareness of these risks is vital, especially in regions where UV radiation can lead to long-term skin damage.

Hourly UV Index in Barreirinha

The UV Index throughout the day paints a vivid picture of solar intensity, peaking sharply in the late morning. At 07:00, the UV Index starts off modestly at 1, but by 08:00, it climbs to 3, indicating a gradual increase in sunlight. As the day progresses, it reaches 5 at 09:00 and then escalates dramatically to 8 by 10:00. The sun's strength hits its zenith at 11:00 with a striking 10, peaking even further at 12:00, where it soars to 11—an optimal time for sun protection. After this high, the UV Index begins to wane, falling back to 10 at 13:00, before declining steadily to 4 at 15:00, 2 at 16:00, and eventually drifting down to 1 by 17:00. As dusk approaches, the UV Index drops to 0 by 18:00, signaling a safe end to sun exposure for the day. Such daily fluctuations highlight the importance of being mindful of UV levels, especially during midday 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	3	moderate	30 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	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 Barreirinha

The UV Index remains extremely high throughout the year, peaking at 16 during the winter and spring months (January to April) and gradually lowering to 11 in the summer (June to August) while maintaining 13 in autumn and winter months (September to December). The high-risk months, therefore, are from January through April, where the burn time is as short as 10 minutes. Visitors and residents are strongly advised to take precautionary measures during these periods, such as seeking shade, wearing protective clothing, and applying sunscreen regularly to minimize the risk of skin damage from the intense UV radiation.

Monthly Maximum UV Index for Barreirinha, Brazil

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

The table above highlights how UV exposure in Barreirinha 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.

Barreirinha'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
Barreirinha	15	16	16	16	13	11	11	11	13	13	13	13