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Buenos Aires

Weather in Buenos Aires by month: what to expect

Photo: Raul Senzacqua, CC BY-SA 3.0

Weather overview

Буэнос-Айрес enjoys a temperate climate with distinct seasons, though winters remain mild compared to many other destinations. Summers in Буэнос-Айресе are warm and humid, while winters bring cooler days without extreme cold. The city’s weather shifts gradually, making it comfortable for exploration most of the year.

Rainfall in Буэнос-Айресе is spread unevenly, with the wettest months falling in summer and early autumn. The driest period arrives in winter, particularly in June and July, when clear skies are more common. Travelers should note these patterns when planning outdoor activities or day trips.

Temperature

In Буэнос-Айресе, January and February are the warmest months, with average temperatures around +25 °C and highs reaching +29.8 °C. Nights remain pleasant at +21.1 °C, but humidity can make the heat feel more intense. By March, temperatures begin to drop, easing into a milder +22.2 °C.

Winter in Буэнос-Айресе arrives in June and July, with average temperatures hovering around +12.5 °C and +11.6 °C. Nighttime lows can dip to +8 °C, though frost is rare. Days often stay cool but sunny, making it a good time for walking tours without the summer crowds.

Spring and autumn in Буэнос-Айресе offer the most balanced weather. In October, temperatures rise to +17.8 °C, while November sees a jump to +21.1 °C. Evenings remain comfortable, with lows around +14 °C in October and +17.3 °C in November.

Average air temperature °C
Average air temperature
Month Minimum Maximum
January 21.1 29.8
February 20.4 28.6
March 18.7 26.4
April 15.7 22.8
May 11.6 18.5
June 8.9 16.6
July 8 15.3
August 9.3 17.2
September 11.5 19.2
October 14 22.5
November 17.3 26
December 19.2 27.9

Precipitation

Буэнос-Айрес receives most of its rain in summer, with January and February averaging over 130 mm each. Downpours can be sudden but are often short-lived, giving way to sunshine. By March, rainfall decreases slightly to 113 mm, though humidity remains noticeable.

The driest months in Буэнос-Айресе are June and July, with precipitation dropping to 22.3 mm and 38.6 mm respectively. This period offers the most reliable weather for outdoor plans, though occasional light rain can still occur. October is another dry month, with only 33.2 mm of rain.

Rain returns gradually in late winter and spring, with September seeing 80.4 mm and November reaching 106.5 mm. While showers are more frequent, they rarely disrupt travel plans for long. A light jacket or umbrella is useful during these months.

Precipitation amount mm
Precipitation amount
Month Precipitation
January 130.7
February 131.7
March 113
April 96.7
May 64.7
June 22.3
July 38.6
August 62.8
September 80.4
October 33.2
November 106.5
December 89.5

What to pack

For a trip to Буэнос-Айрес in summer (December to February), pack lightweight, breathable clothing to handle the +25...+29.8 °C heat. A hat, sunglasses, and sunscreen are essential, as the sun can be strong even on cloudy days. Comfortable walking shoes are a must for exploring the city’s neighborhoods.

Winter in Буэнос-Айресе (June to August) calls for layers, as temperatures range from +8 °C at night to +17.2 °C during the day. A light jacket or sweater is usually enough, though evenings can feel chilly near the river. Scarves and closed-toe shoes will keep you comfortable during cooler spells.

In spring (September to November) and autumn (March to May), Буэнос-Айрес offers mild weather, but layers remain key. Days can warm up to +22 °C in March or +19.2 °C in September, while nights cool down. A mix of short-sleeve shirts, light sweaters, and a waterproof jacket will cover most conditions.

Average monthly wind m/s
Average monthly wind
Month Wind speed
January 4.6
February 3.9
March 4
April 3.6
May 3.2
June 2.9
July 3.3
August 3.5
September 4.1
October 4.5
November 4.6
December 4.4