UV Index in Ribeirao Preto, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Ribeirão Preto, Brazil, is crucial for maintaining skin health and preventing sunburn. With the city's tropical wet and dry climate contributing to high UV exposure, knowing when the levels peak—particularly between 11:00 AM and 1:00 PM with indices reaching as high as 8—can make a significant difference in your sun safety routine. By familiarizing yourself with the UV index, you can take proactive measures to protect your skin, enjoy the sunny days, and stay safe while soaking up the warmth that Ribeirão Preto has to offer.

Hourly UV Index in Ribeirao Preto

At dawn, the UV Index begins its gentle ascent, peaking at 1 by 7:00 AM. As the sun rises higher, the intensity climbs sharply, reaching a notable 8 by noon. This midday sunshine brings about the highest UV exposure between 11:00 AM and 1:00 PM, where the Index holds steady at 8. By 2:00 PM, the levels start to dip, falling to 6 at 2:00 PM, and noticeably lower by the afternoon. By 6:00 PM, the UV Index drops to 0, signaling a retreat of harmful rays as the day gives way to evening. Remember, during peak hours, wearing sunscreen and protective clothing is crucial to safeguard your skin!

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	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	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 Ribeirao Preto

The UV Index demonstrates notable seasonal fluctuations, indicating that January through April poses a high-risk period for sun exposure, with an extreme rating of 16-13, and a very short burn time of just 10 minutes. Visitors and residents should be particularly cautious during these months, as well as in September to November, which also show extreme UV levels with a burn time of 10 minutes. In contrast, May through August presents a very high risk with slightly longer burn times of 15-25 minutes, peaking in July. As such, regardless of the season, it is crucial to apply sunscreen diligently, wear protective clothing, and limit sun exposure, especially during midday hours, to safeguard against skin damage and other UV-related health issues.

Monthly Maximum UV Index for Ribeirao Preto, Brazil

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

The table above highlights how UV exposure in Ribeirao Preto 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.

Ribeirao Preto'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
Ribeirao Preto	16	16	13	11	8	7	8	10	12	13	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