Live Weather & Forecast
Weather in São João da Barra
Rio de Janeiro, Brazil · Real-time conditions & 3-day outlook
30°C
Feels like 35°C
86°F / Feels 96°F
Sunny
São João da Barra, Rio de Janeiro
🌞 Daytime
Updated: 2026-04-19 11:00
Humidity
62%
Wind
11.5 km/h SSW
Wind Gust
15.2 km/h
Pressure
1011 mb
Visibility
10 km
UV Index
8.2
(Very High)
Precipitation
0 mm
Cloud Cover
25%
Dew Point
21.4°C
Wind Degree
211°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
162.9 μg/m³
NO₂
1.8 μg/m³
O₃
138 μg/m³
SO₂
3.7 μg/m³
PM 2.5
9.9 μg/m³
PM 10
10.2 μg/m³
Today's Hourly Forecast
24-hour breakdown for São João da Barra, Rio de Janeiro
12 AM
24°
Clear
1 AM
23°
Patchy rain nearby
2 AM
23°
Partly Cloudy
3 AM
23°
Clear
4 AM
23°
Clear
5 AM
22°
Clear
6 AM
22°
Sunny
7 AM
23°
Sunny
8 AM
24°
Sunny
9 AM
25°
Sunny
10 AM
26°
Sunny
11 AM
30°
Sunny
12 PM
28°
Partly Cloudy
1 PM
28°
Patchy rain nearby
2 PM
28°
Patchy rain nearby
3 PM
27°
Sunny
4 PM
27°
Patchy rain nearby
5 PM
25°
Patchy rain nearby
6 PM
24°
Patchy rain nearby
7 PM
23°
Patchy rain nearby
8 PM
23°
Clear
9 PM
23°
Partly Cloudy
10 PM
23°
Clear
11 PM
22°
Clear
3-Day Forecast
Daily overview for São João da Barra, Rio de Janeiro
Today
Patchy rain nearby
28°
/
22°
🌧️ 85% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 22 km/h
🌧️ Total precip: 0.85 mm
☀️ UV Index: 8.6
🌅 Sunrise: 05:58 AM
🌇 Sunset: 05:29 PM
🌙 Waxing Crescent
🌑 Moon: 3% lit
Mon, Apr 20
Patchy rain nearby
27°
/
20°
🌧️ 89% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 22.3 km/h
🌧️ Total precip: 0.18 mm
☀️ UV Index: 8.8
🌅 Sunrise: 05:58 AM
🌇 Sunset: 05:28 PM
🌙 Waxing Crescent
🌑 Moon: 9% lit
Tue, Apr 21
Patchy rain nearby
26°
/
20°
🌧️ 83% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 18.7 km/h
🌧️ Total precip: 0.41 mm
☀️ UV Index: 8.9
🌅 Sunrise: 05:59 AM
🌇 Sunset: 05:27 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Best Time to Visit São João da Barra
Plan your trip to São João da Barra, Brazil around the most favorable weather conditions.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in São João da Barra?
Current conditions in São João da Barra: Sunny, temperature 30°C, humidity 62%.
What is the best time to visit São João da Barra?
The best time to visit São João da Barra is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in São João da Barra?
São João da Barra is located at approximately -21.6° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in São João da Barra?
The wettest period in São João da Barra is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to São João da Barra?
For visits to São João da Barra during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is São João da Barra in?
São João da Barra is located in Brazil, in the state of Rio de Janeiro.
What are the public holidays in São João da Barra in 2026?
View the 2026 public holidays for São João da Barra on our Holidays page.
What are the GPS coordinates used for the weather forecast in São João da Barra?
The weather forecast for São João da Barra uses coordinates -21.6344, -41.0499.