UV Index in Sao Joao da Barra, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Sao Joao da Barra, Brazil is essential for anyone who wants to enjoy the sun safely. With a tropical climate characterized by intense sunlight, being aware of UV levels can help prevent sunburns and protect your skin health. During peak hours, particularly between 10 AM and 1 PM, the UV Index reaches levels of 5 to 6, posing an increased risk for skin damage if proper precautions aren’t taken. By staying informed about the UV Index, residents and visitors alike can take proactive steps to safeguard their skin, making the most of the vibrant outdoors while minimizing potential harm.

Hourly UV Index in Sao Joao da Barra

Experience the sun's embrace with our hourly UV Index data, highlighting the day's peak exposure times. The morning starts gently at 7:00 with a UV Index of 1, gradually climbing to 2 by 8:00 and reaching 3 at 9:00. The real heat kicks in at 10:00, where the index spikes to 5, peaking at 11:00 and 12:00 with a remarkable 6. As the afternoon unfolds, the index dips to 5 at 13:00 and gently declines further to 4 by 14:00. A gradual retreat follows, with readings of 2 at 15:00, 1 for the last hours until sunset, and finally dropping to 0 by 18:00 and throughout the evening. Stay protected and embrace the sunshine wisely!

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	5	moderate	30 min
11:00	6	high	25 min
12:00	6	high	25 min
13:00	5	moderate	30 min
14:00	4	moderate	30 min
15:00	2	low	45 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 Sao Joao da Barra

The UV Index reveals significant seasonal changes, with extreme levels dominating from January to April and again in September to November. High-risk months include January through April and September through November, where the burn time is as brief as 10 minutes. In contrast, the UV Index drops to very high in May, July, and August, allowing for marginally longer burn times of 15 minutes and 20-25 minutes in June. Visitors and residents should prioritize sun safety during these high UV periods, especially by wearing protective clothing, applying sunscreen regularly, and seeking shade, particularly during peak sunlight hours. Taking these precautions can safeguard against sun damage and ensure a healthier experience outdoors.

Monthly Maximum UV Index for Sao Joao da Barra, Brazil

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

The table above highlights how UV exposure in Sao Joao da Barra 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.

Sao Joao da Barra'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
Sao Joao da Barra	16	14	13	11	8	6	8	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