UV Index in Rio Real, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Rio Real, Brazil, is essential for maintaining skin health and preventing sunburn. With its tropical climate, Rio Real experiences varying UV levels throughout the day, peaking at a formidable 10 around midday. This makes it crucial for residents and visitors alike to be aware of UV exposure risks to protect against skin damage. By staying informed about the UV Index, you can take proactive measures, such as wearing protective clothing and seeking shade, ensuring you enjoy the beautiful Brazilian sun safely.

Hourly UV Index in Rio Real

The UV Index data presents a fascinating glimpse into the sun's intensity throughout the day. Starting off gently at 07:00 with a maximum of 1, the UV Index climbs steadily, peaking at a striking 10 by 11:00. This marks the most intense period of sun exposure, making midday the time for caution. From there, the index begins to gradually decline, dropping to 5 by 14:00, before sharply falling back to 1 by 16:00, and finally reaching a 0 after 18:00. The clear upward and downward trends in UV exposure highlight the importance of sun protection, especially during those peak hours when the UV Index soars.

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	6	high	25 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 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 Real

The UV Index experiences significant fluctuations throughout the year, predominantly remaining in the extreme and very high exposure categories. Notably, the high-risk months span from January to April and August to November, during which the UV Index peaks at 15 in November and hovers around 14 in several other months, indicating a burn time of just 10 minutes. In June and July, although the index decreases to 10, both months are still classified as very high, allowing for a slightly longer burn time of 15 minutes. To safeguard against harmful UV exposure, visitors and residents are advised to wear protective clothing, apply broad-spectrum sunscreen, and seek shade, especially during peak sunlight hours. Emphasizing vigilance in skin protection is crucial, particularly from late spring through to late autumn.

Monthly Maximum UV Index for Rio Real, Brazil

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

The table above highlights how UV exposure in Rio Real 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 Real'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
Rio Real	14	14	14	13	11	10	10	12	13	14	15	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13