UV Index in Rio Piracicaba, Brazil

Last updated: July 2, 2025

In Rio Piracicaba, Brazil, being aware of the UV Index is crucial for safeguarding your skin and overall health. With peak UV levels soaring to an 8 between 11:00 AM and 12:00 PM, understanding these readings can help prevent painful sunburns and long-term skin damage. The region's Cwa climate, characterized by warm summers and mild winters, increases the risk of UV exposure, making it essential for residents and visitors alike to stay informed about the sun’s intensity. By keeping an eye on the UV Index, you can enjoy the beautiful outdoors while protecting your skin from harmful rays.

Hourly UV Index in Rio Piracicaba

As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s 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	2	low	45 min
09:00	4	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	7	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 min
16:00	1	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 Rio Piracicaba

The UV Index experiences significant seasonal fluctuations, with the highest levels occurring from January to April, where the index is classified as extreme (ranging from 14 to 17) and the burn time is a mere 10 minutes. This trend continues into September through November, maintaining an extreme exposure category and a consistent burn time of 10 minutes. In contrast, the summer months from May to August present a lower UV Index, categorized as very high to high, allowing for slightly longer burn times of 15 to 25 minutes. Visitors and residents are advised to exercise caution during the peak months of January, February, March, April, September, October, and November. It is crucial to take protective measures such as wearing sunscreen, protective clothing, and sunglasses, especially during these high-risk months to minimize the risk of skin damage.

Monthly Maximum UV Index for Rio Piracicaba, Brazil

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

The table above highlights how UV exposure in Rio Piracicaba 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.

Rio Piracicaba'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
Rio Piracicaba	17	15	14	12	9	7	8	10	12	14	15	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