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Buenos Aires Weather in September, Argentina


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Buenos Aires Averages September

  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month


  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    6 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    8 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years


    50 mm

Buenos Aires Daily Averages September

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September Weather Averages

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What's the Weather Like in Buenos Aires in September


Average temperatures are on the slow rise during the first month of spring in Buenos Aires. Typical temperatures range from 10C (50F) to 19C (66.2F), but variations do happen. In this regard, low temperatures usually vary between 6C (42.8F) and 16C (60.8F). High temperatures tend to fluctuate from 12C (53.6F) to 23C (73.4F), in general. In September, average daily temperatures are similar between Buenos Aires, the capital of Argentina, and Bogota, the capital city of Colombia.

During the month of September, it feels cool (above 13C/55.4F, for instance) most of the time in this Argentine destination. Cold temperatures are predominant only during the night. However, the interval of these temperatures shortens at a fast rate. In the beginning of the month, it is cold approx. from 1 am to 10:30 am. During the final days of September, it feels cool 24 hours a day.

Sunshine Hours

In the first month of spring, the city of Buenos Aires features around 6 hours of sunlight per day on average. The probability of mostly cloudy or overcast weather conditions is decreasing in the course of September from 42% to 39%. Hence, the share of sunny weather in this destination is a bit over 50% of daylight hours this time of year.


With the arrival of spring, rain tends to intensify in the largest city of Argentina. The capital of Argentina features a somewhat higher accumulation of rainfall during less wet days than in August. On average, the city receives around 75 mm/2.95 in of liquids across 7 rainy days throughout the month. Even so, sporadic rain is the most common type of precipitation.

The chances that any day will be wet are on a moderate rise throughout September. They increase from 20% at the beginning of the period to 25% by its end. Accordingly, the fallen amount of rainfall is larger the later precipitation takes place. Statistically, late night (around 3 am) is the most likely time of the day for rain to fall. Mid-evening (around 9 pm) typically features the lowest chances of rainfall during September.

Wind speed

The average wind speed is constantly between 5 m/s and 5.2 m/s (gentle breeze) during September in the cosmopolitan city of Buenos Aires. The late morning features the strongest wind, which develops the speed up to 5.6 m/s (moderate breeze). Late afternoons and early evenings (around 6 pm) are the calmest in this regard. Then, the speed of the wind decreases down to 4.3 m/s.


The most populous city of Argentina is a dry destination in regard to overall humidity in the beginning of spring. The average relative humidity is 70%, which leaves small chances of comfortable conditions. Yet, the chances of these conditions are on the rise from around 20% to 30% during September.

Sunrise and sunset

This time of year, the duration of daylight increases at a fast pace. On September 1, sun rises at 7:12 am and sets at 6:35 pm, granting the city 11:23 hours of daylight. September 30 features 12:24 hours of daylight, with sunrise occurring at 6:31 am and sunset taking place at 6:55 pm.

Average sea temperature

The sea temperature is on the rise in this Argentine destination during September. In general, this parameter ranges between 12C (53.6F) and 16C (60.8F) in the first month of spring.

Extraordinary weather occurrences

In the beginning of the spring season, light frosts still tend to occur in the city of Buenos Aires due to cold air currents arriving from the south.

Buenos Aires Hotels in September

The number of travelers visiting Buenos Aires, the Paris of South America, is low in September. Hence, accommodation rates and other travel expenses that fluctuate throughout the year are still low during this month.

Eco Pampa Hostel

Eco Pampa Hostel, located in the Palermo district, disposes of private rooms, mixed dormitories and female dorms. Basic facilities of the hostel are private and shared bathrooms, air-conditioning, safes, TVs, fully-equipped kitchen and free internet access. A solarium and a bar are additional facilities of Eco Pampa Hostel.

Infinito Hotel

Infinito Hotel is a 3-star property, located in the Palermo neighborhood of Buenos Aires, the capital of Argentina. Guests of the hotel can count on heating and climate control, free Wi-Fi and LCD TVs in their rooms and suites. A spa, comprising solarium, sauna and Jacuzzi, and room service are other amenities Infinito Hotel disposes of.

Kenton Palace

Kenton Palace Buenos Aires is a 4-star hotel located in the downtown area. It offers rooms and suites equipped with LCD TVs, air-conditioners, minibars, free internet and toiletries among other equipment. The complex adds a spa with Jacuzzi, gym, sauna, restaurant and a swimming pool among other facilities. A parking, room service and live music performances are other amenities of the hotel.

Hotel NH Buenos Aires City

Hotel NH Buenos Aires City is a 5-star complex. It boasts rooms and suites featuring air-conditioning, cable TVs, complimentary wireless internet, minibars and safes among other equipment. Some useful facilities are a gym, swimming pool atop the hotel, business center, banquet facilities and an indoor parking.

Bars and restaurants

Being hungry in the cosmopolitan city of Buenos Aires is next to impossible. The most populous city in Argentina is one of the leading South American destinations. Hence, its bars and restaurants serve a wide range of specialties of worldwide famous cuisines. More so, finding affordable eats is easy. If you dispose of a very limited budget for dining, several USD (in the Argentine currency) should suffice for the day. Options for discerning gourmands, rising up to a few hundred USD per meal, are available, too.

Café Paulin

Café Paulin is a bar serving snacks, meals, coffee and other drinks for affordable prices. Former patrons have a high opinion about the service and the size of the portions. Traditional empanadas, a popular Argentine specialty, is in the menu at Café Paulin. Opening hours of the café are from 6 am to 9 pm daily except on Sunday.

Los Infernales

Los Infernales is a popular eatery located in the San Telmo district. Here you can dine Argentine food and enjoy artisanal beers for reasonable prices. If you haven't tasted meat of nandu or llama, Los Infernales offer you a chance. Besides, the house has dishes based on fish, beef and lamb meat.

Cocu Boulangerie

Cocu Boulangerie is a well-reputed bakery specializing in French pastries. Here, you can dine or have a cup of coffee while admiring the sight of pastries being baked in the oven. Savory and sweet alternatives are both available. Opening hours of Cocu Boulangerie are from 9 am (10 am on weekends) to 8 pm on a daily basis.

Casa Coupage Room

Casa Coupage Room is an exclusive dining venue in Palermo, Buenos Aires, introducing specialties of Argentinian cuisine. The ambiance is appealing and dishes creative in various ways. A selection of Argentine wines is carefully chosen to provide the top dining experience. Casa Coupage Room's opening hours are from 8:30 pm to 10:30 pm, Tuesday to Saturday.

Things to do in Buenos Aires in September

Congressional Plaza

Congressional Plaza, or Congress Square, is a large public area located west of Plaza de Mayo. The square has a lot to offer for you to admire. Its centerpiece is the impressive Congress Building, featuring neoclassical style (columns, pediment) with Beaux-Arts elements. The monument to the Argentine independence from Spain (won 1816) and "Thinker," a replica of Auguste Rodin's masterpiece, are other highlights of Congressional Plaza. Also, don't miss a gorgeous fountain next to the Argentine National Congress, boasting beautiful sculptures.

Afterward, take a short walk along Parana Street. Turn right after a few blocks to see statues of comedians Alberto Olmedo and Javier Portales.

Explore the largest city of Argentina by bike

Riding a bike is one of the best ways of exploring the city, if not the very best. Getting around is quite easy regardless of the physical shape of the biker since Buenos Aires, the Paris of South America, is flat. More so, bike lanes are everywhere, covering the distance of approximately 130 kilometers/80 miles. If you don't have your own bicycle, make use of EcoBici. It is a bike sharing system, which you can use for free for rides that last less than an hour.

Chinatown, Belgrano

Located in the Belgrano barrio, Chinatown of Buenos Aires is where you can acquaint yourself with the Oriental cuisine and art. Also, you will notice a variety of attractive goods as you walk this commercial neighborhood. Among other items, you can purchase toys, porcelain objects, clothes, footwear and jewelry. Stopping by for an acupuncture treatment or a relaxing massage is the option, as well.