UV Index in Sao Joaquim, Brazil

Last updated: June 2, 2025

In the picturesque Sao Joaquim, Brazil, awareness of the UV Index is crucial for safeguarding your skin from harmful sun exposure. Understanding UV levels can help you effectively prevent sunburn and promote long-term skin health, particularly in regions like Sao Joaquim, where the Cfb climate brings diverse weather but also notable UV risks. With peak UV readings reaching 5 between 11:00 AM and 1:00 PM, it's essential for residents and visitors alike to stay informed and take proactive measures against the sun's rays, ensuring a safe and enjoyable outdoor experience in this beautiful locale.

Hourly UV Index in Sao Joaquim

The UV Index throughout the day exhibits a dynamic pattern, starting at 0 at 7:00 AM and gradually climbing to its peak of 5 by 11:00 AM to 1:00 PM. The sun's intensity then begins to wane, dipping to 4 at 2:00 PM and falling to 2 by 3:00 PM. As the afternoon transitions into evening, the index further declines, reaching 1 at both 4:00 PM and 5:00 PM, before plummeting back to 0 by 6:00 PM. This progression highlights the importance of sun safety measures during peak hours, particularly between 10:00 AM and 1:00 PM when the UV levels are highest.

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	5	moderate	30 min
12:00	5	moderate	30 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 Joaquim

Throughout the year, UV Index values fluctuate significantly, indicating varied exposure risks. January to April presents the highest danger, with UV Index values between 11 and 16, categorized as extreme and allowing for a burn time of just 10 minutes. May through July sees a slight decrease, with May at a high exposure risk (UV Index 7) and July shifting back to high at UV Index 6, allowing for a burn time of 25-30 minutes. As summer transitions to fall, August experiences very high exposure, followed by a return to extreme levels in September and October. Notably, November and December maintain an extreme category once again. Visitors and residents should prioritize sun protection during the high-risk months of January through April and August through October, ensuring they limit exposure and utilize sunscreen, protective clothing, and shade to avoid harmful effects from UV radiation.

Monthly Maximum UV Index for Sao Joaquim, Brazil

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

The table above highlights how UV exposure in Sao Joaquim 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 Joaquim'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 Joaquim	16	15	13	11	7	5	6	8	11	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