Rosario weather in September (Santa Fe Province, Argentina)

Curious about the September weather in Rosario? This guide provides all the details you need.

In Rosario, September is characterized by high temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 22°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 10°C.

Rosario in September usually receives moderate rainfall, averaging around 64 mm for the month. When we look at the climate data from the last 30 years, we can expect around 6 days of rain.

The days are predominantly sunny, with an estimated total of around 199 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

If you favor pleasant temperatures and minimal rainfall, September is one of the better months to visit Rosario. May, August and September typically offer the most agreeable circumstances. On the other hand, January, February, July and December tend to be characterized by conditions that may not be as optimal.

For an in-depth look at the yearly conditions, visit our specialized Rosario climate page with graphs.

 

Rosario, monthly averages in September

Min Temperature 10°C  

Max Temperature 22°C  

Chance of Rain 19%  

Precipitation 64 mm  

Rainy days 6 days  

Humidity 74%  

Windspeed 18 km/h  

Sunshine 199 hours  

Percentage Sunshine 56%  

Where to go in Argentina in September

Find out more about the weather in Argentina in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Rosario in September?

For visitors traveling to Rosario, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

4/10

Outdoor sports

10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Rosario.

Our site offers climate and forecast data for every country in the world. Are you going to Argentina? On this website you can find historical weather averages for many cities in Argentina. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.