UV Index in Birigui, Brazil

Last updated: June 2, 2025

In Birigui, Brazil, staying informed about the UV Index is crucial for protecting your skin and overall health. With the region's tropical climate, understanding UV levels helps prevent sunburn and long-term skin damage—especially during peak hours when the UV Index can soar to 7 around midday. By being aware of these levels, residents and visitors can take proactive measures to enjoy the sun safely, ensuring that outdoor activities remain pleasant and free from the risks associated with prolonged sun exposure. Whether you're relaxing in a park or engaging in sports, keeping an eye on the UV Index can make all the difference in maintaining your skin health.

Hourly UV Index in Birigui

The UV Index data reveals a significant fluctuation in solar intensity throughout the day. Starting at 07:00, the index registers a low 1, indicating minimal risk. As the sun climbs higher, it peaks dramatically at 12:00 with a 7, categorizing it as high. This midday zenith is crucial for outdoor activities; however, caution is advised. The afternoon sees a slight decline, dropping to 3 by 15:00, and eventually receding to 0 after 18:00. Thus, while the early hours offer safe sun exposure, midday warrants protective measures to shield against harmful UV rays.

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	2	low	45 min
10:00	4	moderate	30 min
11:00	6	high	25 min
12:00	7	high	25 min
13:00	6	high	25 min
14:00	5	moderate	30 min
15:00	3	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 Birigui

The seasonal UV changes indicate that exposure levels are consistently high, particularly from January to April, where the UV Index remains in the extreme category, peaking at 16 in February and December. High-risk months include January, February, March, April, September, October, and November, as they all feature an extreme UV Index that can lead to sunburn in as little as 10 minutes. Conversely, the summer months of May, June, July, and August experience a drop to very high and high categories, with slightly longer burn times of 15 to 25 minutes. Visitors and residents should take precautions during all months, especially in extreme UV conditions, by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen to minimize the risk of skin damage.

Monthly Maximum UV Index for Birigui, Brazil

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

The table above highlights how UV exposure in Birigui 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.

Birigui'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
Birigui	15	16	13	11	8	7	8	10	12	14	14	16
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