Porto Alegre Weather in March

What's the weather like in Porto Alegre (Rio Grande do Sul) in March 2023?

The climate in Porto Alegre during March can be summarized as hot, humid and damp.

March is in the fall / autumn in Porto Alegre and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 19°C (66°F) is normal.

Porto Alegre weather averages (imperial / metric)
Daytime temperature 27.7°C 81.9°F
Nightly temperature 18.9°C 66°F
Average temperature 23.3°C 73.9°F
Daily sunshine 6.9 hrs
Avg rainfall 105 mm 4.1 ins
Rainy days 18 days
Sea temperature 24.6°C 76.3°F
Humidity 76%
Windspeed 7.6kph 5 mph

On average March is the 6th driest month of the year in Porto Alegre with around 105mm 4.1 inches of rain making it a damp 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 6.9 hours of sunshine per day.

March temperatures in Porto Alegre

Porto Alegre average temperature in March

March rainfall

Porto Alegre average rain in March

March hourly sunshine

Porto Alegre average rain in March

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 March 2022.

Other monthly averages

Best places to visit in March

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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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