UV Index in Realeza, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Realeza, Brazil, where sunny days prevail in the humid subtropical climate (Cfa). Being aware of UV levels allows you to protect your skin from harmful rays, preventing sunburn and long-term health risks. During peak hours, particularly around noon when the UV Index can reach a high of 7, the risk of skin damage increases dramatically. By monitoring the UV Index, you can enjoy the sun safely while safeguarding your skin's health in this vibrant locale.

Hourly UV Index in Realeza

Throughout the day, the UV Index showcases a dynamic pattern of intensity. Starting at a gentle 1 by 07:00, the index gradually rises, reaching a moderate 2 by 09:00. As the sun climbs higher, a notable increase occurs, peaking at an elevated 7 from 12:00 to 13:00, marking the day's most intense UV exposure. The index then begins its descent, dipping to 4 by 15:00 and further down to 2 by 16:00. As evening approaches, the UV risk diminishes, with values dropping to 0 at 18:00 and remaining low for the rest of the evening. It's essential to stay protected during those peak midday hours when UV exposure can be at its strongest!

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	7	high	25 min
14:00	6	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 Realeza

The UV Index exhibits significant seasonal variation, with January through April and November to December experiencing extreme levels (15 to 13), where the burn time is as short as 10 minutes. This indicates that the sun’s intensity is particularly strong during these months, necessitating extreme caution when spending time outdoors. May and June see a dip to a high level (7 to 6) with longer burn times of 25 minutes. August and September also elevate to very high levels (8 to 10), with reduced burn times of 15 minutes. Therefore, it is crucial for visitors and residents to take protective measures—such as applying sunscreen, wearing protective clothing, and seeking shade—especially during the high-risk months of January, February, March, April, October, and November. Staying informed about the UV Index can help ensure a safer outdoor experience year-round.

Monthly Maximum UV Index for Realeza, Brazil

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

The table above highlights how UV exposure in Realeza 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.

Realeza'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
Realeza	15	15	13	11	7	6	6	8	10	13	15	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