Porto Alegre Weather in September

What's the weather like in Porto Alegre (Rio Grande do Sul) in September 2022?

The climate in Porto Alegre during September can be summarized as mild and wet.

September is in the spring in Porto Alegre and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 13°C (55°F) is normal.

Porto Alegre weather averages (imperial / metric)
Daytime temperature 21.2°C 70.2°F
Nightly temperature 12.8°C 55°F
Average temperature 17°C 62.6°F
Daily sunshine 5.3 hrs
Avg rainfall 141 mm 5.6 ins
Rainy days 18 days
Sea temperature 16.7°C 62°F
Humidity 79%
Windspeed 9.7kph 6 mph

On average September is the wettest month of the year in Porto Alegre with around 141mm 5.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 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 Porto Alegre

Porto Alegre average temperature in September

September rainfall

Porto Alegre average rain in September

September hourly sunshine

Porto Alegre 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 Porto Alegre in September 2022.

Other monthly averages

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Porto Alegre weather stats

Porto Alegre weather statistics
Hottest month: January 29.2°C 84.6°F
Driest month: April 92mm 3.6ins
Sunniest month: December 8.4hrs
Coldest month: June 18.6°C 65.5°F
Wettest month: September 141mm 5.6ins
Map showing location of Porto Alegre (-30.03306, -51.23)

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