The climate of Buenos Aires
Buenos Aires, the capital city of
Argentina, sits within a climatic zone described as Humid subtropical with no dry season, also known as Cfa according to the Köppen climate classification. This vibrant city endures a wide range of weather conditions throughout the year.
Temperature fluctuations are relatively moderate across the year, with the highest average temperature peaking at 30.9°C (87.6°F) in
January while
July is the coolest month at 14°C (57.2°F). The annual swing between the highest and lowest temperatures is narrow, demonstrating the mildness of Buenos Aires's climate.
One of the characteristic features of Buenos Aires's climate is its relatively high humidity which fluctuates from around 56% in January to 76% in
May. The level of rainfall is fairly constant throughout the year, varying slightly from 38mm (1.5") in
June to 78mm (3.07") in
November. It is also noteworthy that the average number of rainfall days in a month ranges from 7 to 10.
One unique aspect worth mentioning is the sea temperature, which can reach a high of 25°C (77°F) in January and dip to a low of 11.9°C (53.4°F) in July. Moreover, the average wind speed varies subtly from around 13.2km/h (8.2mph) to 15.8km/h (9.8mph) over the course of the year.
The best time to visit Buenos Aires
As a premier tourist destination, the best time to visit
Buenos Aires largely depends on personal preferences. However, the climate data suggests that visiting during the months of
March to
May and
October to
December might present the most enjoyable weather conditions. During these periods, the city experiences mild temperatures from around 14°C (57.2°F) to 25°C (77°F). Additionally, these months typically witness lesser rainfall, averaging between 38mm (1.5") to 59mm (2.32"), further enhancing the pleasure of sightseeing in this architectural gem of a city.
The worst time to visit Buenos Aires
Given its subtropical climate,
Buenos Aires can become quite humid especially during the months of
January and
February, making it less than ideal for tourists who are aversive to high humidity. The temperatures during this period could soar to an average high of around 30°C (86°F), which, when combined with 56% to 61% relative humidity, might feel rather uncomfortable to some. And while the sea temperature remains warm during this period, around 25°C (77°F), it might not be enough to offset the high humidity of the city streets.
Spring weather in Buenos Aires
Spring is a delightful period in
Buenos Aires with temperatures regularly ranging from 14°C (57.2°F) to 25°C (77°F). While
September experiences rainfall of around 44mm (1.73"), it reduces slightly to 42mm (1.65") in
October and down to 38mm (1.5") in
November. The average number of sunshine hours hovers around 8 hours per day, affording plenty of daylight for outdoor activities.
Summer weather in Buenos Aires
Summer brings heat to
Buenos Aires, with average daily temperatures regularly climbing to the late twenties and early thirties. Over this period, average temperatures fluctuate from around 26°C (78.8°F) in
December, peaking at 30.9°C (87.6°F) in
January, to 29.5°C (85.1°F) in
February. Rainfall during the summer months is relatively high, with January and February seeing an average of 42mm (1.65") and 59mm (2.32") respectively.
Autumn weather in Buenos Aires
Autumn in
Buenos Aires welcomes cooler weather.
March sees a noticeable decrease in temperature to an average of 26.2°C (79.2°F), which falls to around 22.8°C (73°F) in
April and 18.7°C (65.7°F) in
May. Rainfall during these months is relatively low compared to the rest of the year, fluctuating between 46mm (1.81") to 44mm (1.73").
Winter weather in Buenos Aires
Winter in
Buenos Aires is mild with temperatures typically hovering from 14°C (57.2°F) to 18.2°C (64.8°F). Rainfall during the winter months is a bit higher compared to the rest of the year, varying from 38mm (1.5") in
June up to 51mm (2.01") in
July. Despite the increased precipitation, with an average of 10 hours of daylight per day, the wintry days remain relatively bright.
Weather in January
January offers the peak of
Buenos Aires' summer, inviting visitors with sunny days and blue skies. The city contends with the year's highest temperature, hoisting average high and low temperatures to 30.9°C (87.6°F) and 20°C (68°F) respectively.
Weather in January »
Weather in February
In
February, the weather in
Buenos Aires remains warm, but subtly cooler than
January. There is a slight drop to 29.5°C (85.1°F) in the average high temperature, while the minimum temperature remains virtually unchanged at 19.9°C (67.8°F).
Weather in February »
Weather in March
MarcIn
March,
Buenos Aires begins to welcome autumn. The month experiences a significant drop in temperature, with the average high and low temperature dropping to 26.2°C (79.2°F) and 17.2°C (63°F) respectively. Nonetheless, the climate remains warm enough for enjoyment of outdoor activities.
Weather in March »
Weather in April
April in
Buenos Aires witnesses further transition into Autumn. The city experiences a continued drop in temperature, now placing the average highs and lows at 22.8°C (73°F) and 14.5°C (58.1°F) respectively. Although temperatures decrease, the city remains comfortably warm.
Weather in April »
Weather in May
May brings the true feel of autumn to
Buenos Aires with significantly cooler weather. Temperatures fall to 18.7°C (65.7°F) for average highs and down to 12.2°C (54°F) for lows. Ample sunshine ensures that days are mild enough for outdoor activities.
Weather in May »
Weather in June
June marks the onset of winter in
Buenos Aires. However, with average high and low temperatures at 14.9°C (58.8°F) and 9.1°C (48.4°F) respectively, winters here remain relatively mild. Despite shorter days, the city enjoys moderate sunshine for pleasant daytime conditions.
Weather in June »
Weather in July
July is the chilliest month in
Buenos Aires, with the lowest average temperatures for the year, setting at 14°C (57.2°F) for highs and 8.1°C (46.6°F) for lows. However, characterised by light to moderate winds, the winter chill remains bearable for most.
Weather in July »
Weather in August
In
August,
Buenos Aires starts transition from winter to spring. The average high begins to rise slightly to 16.7°C (62.1°F), while the average low temperature remains relatively steady at 9.3°C (48.7°F). The weather is marked by clear skies, moderate sunshine and less humidity.
Weather in August »
Weather in September
September brings the onset of spring to
Buenos Aires. The temperatures continue to warm up, showing average highs and lows of 18.2°C (64.8°F) and 10.4°C (50.7°F) respectively. It is marked by increasing daylight hours and rising sea temperatures, signaling the end of winter.
Weather in September »
Weather in October
In
October, the
Buenos Aires' weather becomes more spring-like, with average temperatures further increasing to 21.1°C (70°F) for highs and 12.4°C (54.3°F) for lows. Outdoor pursuits become more inviting as the weather continues to warm.
Weather in October »
Weather in November
November brings the verge of summer to
Buenos Aires. The city records an average high and low temperature of 25.3°C (77.5°F) and 14.9°C (58.8°F) respectively. Despite increased rainfall levels, there's an upswing in the number of sunny days and overall daylight, painting a vibrant cityscape.
Weather in November »
Weather in December
December marks the beginning of summer in
Buenos Aires, completing the cycle of seasons with warmth and sunshine. Average high and low temperatures rise to 29.2°C (84.6°F) and 17.8°C (64°F) respectively. It endorses plenty of sunshine, maximizing outdoor enjoyment during longer daylight hours.
Weather in December »
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