UV Index in Sao Joao da Barra, Brazil

Last updated: July 2, 2025

In Sao Joao da Barra, Brazil, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. With a coastal climate that offers abundant sunshine, residents and visitors alike are exposed to varying levels of UV radiation throughout the day. Notably, UV Index levels peak at 8 around noon, indicating a high risk of harm from unprotected sun exposure. Being aware of these fluctuations empowers you to take proactive measures, ensuring enjoyable outdoor activities while minimizing the risk of skin damage. Stay informed and protect yourself under the Brazilian sun!

Hourly UV Index in Sao Joao da Barra

As the sun rises, the UV Index begins its gradual ascent, peaking sharply at 12:00 PM with a striking 8—a reminder of the midday sun's intensity. Starting the day at a gentle 1 at 07:00, it climbs steadily to reach 6 by 10:00 AM, encouraging outdoor enthusiasts to stay protected. The climax arrives at 11:00 AM with a 7, followed closely by the height of 8 at noon. As the afternoon progresses, the UV level gracefully declines, dipping to 5 by 2:00 PM, then significantly dropping to 3, 1, and finally 0 after 6:00 PM. This data underscores the importance of sun safety during peak hours, particularly between 11:00 AM and 1:00 PM, when the UV risk is at its highest—so ensure you’re well-shielded during these critical times!

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:004moderate30 min
10:006high25 min
11:007high25 min
12:008very high15 min
13:007high25 min
14:005moderate30 min
15:003moderate30 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 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.
JanFebMarAprMayJunJulAugSepOctNovDec16141311868911131415
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.
 JanFebMarAprMayJunJulAugSepOctNovDec
Rio de Janeiro UVI15141310767911121315
Sao Paulo UVI16151211867911131415
Sao Joao da Barra16141311868911131415
Belo Horizonte UVI171614129781012131416
Salvador UVI1414141310991212151514
Fortaleza UVI141415151311111213131313