Rosario Weather in December

What's the weather like in Rosario (Colonia) in December 2024?

The climate in Rosario during December can be summarized as warm and a little damp.

December is in the summer in Rosario and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 17°C (63°F) is normal.

Rosario weather averages (imperial / metric)
Daytime temperature 27.2°C 80.9°F
Nightly temperature 17.1°C 62.7°F
Average temperature 22.1°C 71.8°F
Daily sunshine 9.2 hrs
Avg rainfall 84 mm 3.3 ins
Rainy days 10 days
Sea temperature 21.3°C 70.4°F
Humidity 67%
Windspeed 16.9kph 11 mph

On average December is the 6th driest month of the year in Rosario with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.2 hours of sunshine per day.

December temperatures in Rosario

Rosario average temperature in December

December rainfall

Rosario average rain in December

December hourly sunshine

Rosario average rain in December

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 Rosario in December 2024.

Other monthly averages

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Rosario weather stats

Rosario weather statistics
Hottest month: January 28.3°C 82.9°F
Driest month: June 68mm 2.7ins
Sunniest month: January 9.6hrs
Coldest month: July 14.8°C 58.6°F
Wettest month: March 105mm 4.1ins
Map showing location of Rosario (-34.31667, -57.35) Rosario map pin © Google

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