UV Index in Boa Viagem, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Boa Viagem, Brazil, is essential for protecting your skin and overall health. With the city’s tropical climate, UV levels can soar, particularly between 10 AM and 2 PM, when they reach a peak of 13—indicating very high risk of harm from unprotected sun exposure. Recognizing these levels is crucial for preventing sunburn and long-term skin damage, helping residents and visitors alike enjoy the beautiful beaches and vibrant outdoor life safely. By staying informed about the UV Index, you can make smart choices about sun protection and ensure your time in the sun is both enjoyable and safe.

Hourly UV Index in Boa Viagem

Today's UV Index demonstrates a dramatic rise as the sun ascends, peaking at 13 around 11:00 AM and remaining at this level until 1:00 PM. Early risers will notice a milder UV Index of 2 at 7:00 AM, escalating to 4 by 8:00 AM. After 9:00 AM, the intensity rapidly increases, reaching a high of 11 by 10:00 AM before hitting the noon peak. As the afternoon progresses, the UV levels gradually decline, dipping to 7 by 2:00 PM and falling further to 1 by 4:00 PM. By evening, the UV Index settles at 0, indicating a much safer environment for outdoor activities later in the day. Remember to protect your skin during those peak hours!

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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	7	high	25 min
15:00	4	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 Boa Viagem

The UV Index exhibits extreme levels throughout the year, with January to April showing notably high values of 14 to 15, indicating a consistent risk of overexposure to UV rays. The high-risk months for UV exposure are thus from January to April, where the burn time is as little as 10 minutes. As the year progresses, while the UV Index slightly decreases to 11 to 13 from May through October, it remains in the extreme category, suggesting that precautions should still be taken year-round. Visitors and residents are advised to apply sunscreen, wear protective clothing, and seek shade, especially during midday hours, to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Boa Viagem, Brazil

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

The table above highlights how UV exposure in Boa Viagem 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.

Boa Viagem'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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Boa Viagem	14	14	15	15	13	11	11	12	13	13	14	14