São João da Barra Weather in September

What's the weather like in São João da Barra (Rio de Janeiro) in September 2024?

The climate in São João da Barra during September can be summarized as warm, humid and reasonably dry.

September is in the spring in São João da Barra and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 18°C (64°F) is normal.

São João da Barra weather averages (imperial / metric)
Daytime temperature 26°C 78.8°F
Nightly temperature 17.8°C 64°F
Average temperature 21.9°C 71.4°F
Daily sunshine 5.3 hrs
Avg rainfall 60 mm 2.4 ins
Rainy days 12 days
Sea temperature 22.9°C 73.2°F
Humidity 80%
Windspeed 9.7kph 6 mph

On average September is the 5th driest month of the year in São João da Barra with around 60mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.3 hours of sunshine per day.

September temperatures in São João da Barra

São João da Barra average temperature in September

September rainfall

São João da Barra average rain in September

September hourly sunshine

São João da Barra average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in São João da Barra in September 2024.

Other monthly averages

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São João da Barra weather stats

São João da Barra weather statistics
Hottest month: February 30.3°C 86.5°F
Driest month: July 26mm 1ins
Sunniest month: June 7.2hrs
Coldest month: July 25.4°C 77.7°F
Wettest month: November 151mm 5.9ins
Map showing location of São João da Barra (-21.64028, -41.05111) São João da Barra map pin © Google

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