UV Index in Sao Joao da Barra, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Sao Joao da Barra, Brazil, is crucial for safeguarding your skin against harmful ultraviolet rays. Awareness of UV levels can significantly help in preventing sunburn and promoting long-term skin health. With a climate that offers plenty of sunshine, the UV exposure risks in this coastal town peak during midday hours, reaching levels as high as 8 between 11 AM and 12 PM. Staying informed allows you to enjoy the beautiful beaches and outdoor activities while effectively protecting yourself from potential skin damage.

Hourly UV Index in Sao Joao da Barra

As the sun rises, the UV Index begins its climb, starting at a mild 1 at 07:00. By 08:00, it nudges up to 2, but the real surge begins as we approach midday. At 09:00, it reaches 4, and by 10:00, it hits 6—a clear sign to apply that sunscreen! The peak UV intensity occurs from 11:00 to 12:00, where it soars to an impressive 8, making it crucial to seek shade and wear protective clothing. As the afternoon rolls in, the index gradually decreases—7 at 13:00, 5 at 14:00, before plunging to 2 by 15:00. Finally, from 16:00 to 19:00, the UV Index dwindles down to 1 and finally 0, marking the end of a day where sun safety was paramount during those peak hours. Stay vigilant under the sun!

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	4	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	7	high	25 min
14:00	5	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