Buenos Aires, the vibrant capital of Argentina, experiences diverse weather conditions throughout the year. This city in the southern hemisphere enjoys warm summers and cool winters, making it a fascinating place for tourists to visit any time.
The hottest month is January, with average highs reaching 82°F and lows of 69°F, perfect for enjoying outdoor activities and sipping mate at a café.
Winter in Buenos Aires stretches from May to August, with July being the coldest month. Average temperatures drop to lows of 47°F and highs of 57°F.
Despite cooler weather, this season offers a charming ambiance as the city slows down and locals gather around for warm drinks.
The rainy season peaks in spring, especially in November, bringing lush greenery and lively street scenes.
For travelers and locals alike, understanding the climate of Buenos Aires throughout the year is essential.
Whether you’re strolling through the jacaranda-lined streets in spring or exploring historical sites under the summer sun, the city’s weather adds a unique charm to its bustling life.
To plan your visit, it’s helpful to know that Buenos Aires experiences about 108.2 days of rain annually, totaling up to 24.76 inches of precipitation.
Average Temperature in Buenos Aires, Argentina
Buenos Aires experiences a wide range of temperatures throughout the year.
January is the hottest month with average highs reaching up to 82°F and lows around 69°F.
February stays warm with highs near 81°F and lows around 68°F.
March begins to cool down slightly, with highs of 77°F.
April sees more mild temperatures, averaging highs of 72°F and lows of 55°F.
May marks the onset of cooler weather, bringing highs around 65°F.
June averages highs of 59°F and lows of 47°F, making it part of the cold season.
July is the coldest month, with highs around 57°F and lows averaging 47°F.
August starts to warm up a bit, with highs of 60°F and lows of 50°F.
September temperatures rise again, with highs around 65°F.
October enjoys pleasant temperatures with highs averaging 70°F.
November continues to warm up, with highs near 75°F.
December brings temperatures closer to those in January, with highs of 79°F and lows of 66°F.
Here’s a table summarizing the average temperatures by month:
| Month | High (°F) | Low (°F) |
|---|---|---|
| January | 82 | 69 |
| February | 81 | 68 |
| March | 77 | — |
| April | 72 | 55 |
| May | 65 | — |
| June | 59 | 47 |
| July | 57 | 47 |
| August | 60 | 50 |
| September | 65 | — |
| October | 70 | — |
| November | 75 | — |
| December | 79 | 66 |
These variations provide both hot summers and mild, cooler winters. This mix of temperatures offers a unique climate perfect for various activities throughout the year.
To learn more about temperature variations, you can check articles on temperature.
Average Precipitation in Buenos Aires, Argentina
Buenos Aires experiences year-round precipitation, with varying amounts of rainfall and rare occurrences of snowfall. The city’s wettest months bring significant rain, while the cooler months see a decline in precipitation.
Average Rainfall in Buenos Aires, Argentina
Rainfall in Buenos Aires is fairly evenly distributed throughout the year, with peak levels occurring in the summer months.
January typically records the highest amount of rain with an average of 4.7 inches. Conversely, June is the driest month, seeing around 1.5 inches of rain.
| Month | Rainfall (inches) |
|---|---|
| January | 4.7 |
| February | 3.9 |
| March | 3.8 |
| April | 3.5 |
| May | 3.1 |
| June | 1.5 |
| July | 2.0 |
| August | 2.3 |
| September | 2.6 |
| October | 3.4 |
| November | 3.5 |
| December | 3.8 |
Summer rains are common, leading to frequent showers, while the winter months see less activity. Those planning visits should stay aware of the annual rainfall.
Average Snow in Buenos Aires, Argentina
Snowfall in Buenos Aires is an exceedingly rare event. The city’s mild winters do not typically support the conditions necessary for snow.
The last significant snowfall was recorded in 2007, a unique occurrence since snowfall is uncommon in the region.
| Month | Snowfall (inches) |
|---|---|
| January | 0.0 |
| February | 0.0 |
| March | 0.0 |
| April | 0.0 |
| May | 0.0 |
| June | 0.0 |
| July | 0.0 |
| August | 0.0 |
| September | 0.0 |
| October | 0.0 |
| November | 0.0 |
| December | 0.0 |
The city’s climate does not favor significant snowfall. Therefore, snow is not a weather pattern residents or visitors should expect.
If interested in more details about rare snow events, visit information about snow.
Average Sun in Buenos Aires, Argentina
Buenos Aires enjoys a wide range of sunshine hours throughout the year, with the longest days in summer and the shortest in winter. The city’s climate and average daily sunshine can vary significantly based on the season.
Average Daily Shortwave Solar Energy in Buenos Aires, Argentina
Buenos Aires experiences varying levels of daily shortwave solar energy throughout the year. This refers to the amount of sunlight energy that reaches the ground.
On average, the city receives the highest solar energy in January and the least in June.
Table: Average Daily Shortwave Solar Energy by Month
| Month | Solar Energy (kWh/m²) |
|---|---|
| January | 6.5 |
| February | 6.1 |
| March | 5.2 |
| April | 3.9 |
| May | 3.0 |
| June | 2.6 |
| July | 2.9 |
| August | 3.8 |
| September | 4.7 |
| October | 5.4 |
| November | 6.0 |
| December | 6.4 |
Specifics by Season:
- Summer (Dec-Feb): Maximum daily sunlight.
- Winter (Jun-Aug): Minimum daily sunlight.
The city’s daily sunshine hours and daylight duration play a crucial role in these variations. June has the shortest day, while December boasts the longest day.
Average Humidity in Buenos Aires, Argentina
Buenos Aires, Argentina, experiences varying humidity levels throughout the year. The city is known for its high humidity, especially during the summer months.
The humid subtropical climate of Buenos Aires means that the city experiences muggy conditions often. Humidity tends to be higher in the summer and lower in the winter months.
Here’s a table outlining the average humidity by month:
| Month | Average Humidity (%) |
|---|---|
| January | 73 |
| February | 72 |
| March | 70 |
| April | 71 |
| May | 74 |
| June | 76 |
| July | 77 |
| August | 76 |
| September | 74 |
| October | 72 |
| November | 71 |
| December | 72 |
During the summer, from December to February, the city can feel particularly muggy due to the combination of warm temperatures and high humidity.
In contrast, the winter months from June to August, while still humid, do not feel as severe because of the cooler temperatures. Even during these months, humidity levels can reach around 77% on average.
High humidity can affect how the temperature feels. For example, a temperature of 82°F can feel much hotter when the humidity is around 73% in January.
Average Wind in Buenos Aires, Argentina
The average wind speed in Buenos Aires varies throughout the year. Wind speeds can reach significant levels during specific months, particularly in the cooler seasons.
The windiest month is often July, when wind speeds can average around 9 mph.
During the summer months, such as January, wind speeds are generally lower, averaging about 6 mph.
Monthly Average Wind Speed
| Month | Average Wind Speed (mph) |
|---|---|
| January | 6 |
| February | 6 |
| March | 7 |
| April | 7 |
| May | 7 |
| June | 8 |
| July | 9 |
| August | 9 |
| September | 8 |
| October | 8 |
| November | 7 |
| December | 7 |
Winds in Buenos Aires primarily come from the south and the east. Easterly winds are common during warmer months, contributing to the city’s humid climate.
Conversely, southerly winds often bring cooler air, especially in winter.
Wind patterns in Buenos Aires are influenced by various factors, including local geography and seasonal changes.
Understanding these patterns can provide insights into the broader climate of the region.
For more detailed insights and discussions on wind patterns, you can explore articles on wind.
These resources offer a deeper dive into what shapes wind conditions in Buenos Aires and other regions.
Average Air Quality in Buenos Aires, Argentina
Buenos Aires usually has moderate air quality throughout the year.
Between January and September 2020, air quality levels varied, mostly staying between 12.1 and 35.4 µg/m³. In February 2020, air quality was particularly good, with a reading of 10.4 µg/m³. This suggests residents experienced cleaner air during this month.
Monthly Air Quality Readings for 2020:
| Month | AQI (µg/m³) |
|---|---|
| January | 12.1 – 35.4 |
| February | 10.4 |
| March | 12.1 – 35.4 |
| April | 12.1 – 35.4 |
| May | 12.1 – 35.4 |
| June | 12.1 – 35.4 |
| July | 12.1 – 35.4 |
| August | 12.1 – 35.4 |
| September | 12.1 – 35.4 |
Air Quality Terminology:
- Good (0-12 µg/m³): Air quality is considered satisfactory.
- Moderate (12.1-35.4 µg/m³): Air quality is acceptable; however, some pollution might be a concern for sensitive individuals.
Other factors like cloud cover, dew point, and visibility also impact the air quality experienced by residents.
During months with high pressure, less dispersion of pollutants might occur, leading to higher readings.
Similarly, higher moisture levels can assist in the transportation and deposition of pollutants.
For more detailed information about air quality in Buenos Aires, visit the Buenos Aires Air Quality Index.
Topography of Buenos Aires, Argentina
Buenos Aires is situated on the eastern shore of the RÃo de la Plata. The city’s elevation is generally low, averaging around 82 feet above sea level.
This makes Buenos Aires relatively flat, with some slight inclines and declines.
Geographic Features
- RÃo de la Plata: An estuary that forms the border with Uruguay.
- Pampas: The vast plains surrounding the city, extending towards the west and south, offering a flat landscape ideal for agriculture.
Climate Influence
Buenos Aires enjoys a humid subtropical climate (Cfa under the Köppen climate classification).
This means hot, humid summers and mild winters. The city’s location near large bodies of water moderates temperatures, ensuring fewer extremes compared to inland areas.
Vegetation and Flora
- Jacaranda Trees: These trees are iconic in Buenos Aires, especially when they bloom in spring, adding vibrant purple hues to the city parks and streets.
- The city features a mix of urban greenery, including various parks and boulevards.
Monthly Climate Overview
| Month | High (°F) | Low (°F) | Precipitation (in) |
|---|---|---|---|
| January | 82 | 69 | 4.3 |
| July | 57 | 47 | 2.7 |
Extreme Weather Events that Occur in Buenos Aires, Argentina
Buenos Aires faces various extreme weather events throughout the year. These events can have significant impacts on the city and its residents.
Thunderstorms
Thunderstorms are a common occurrence, especially in the summer months.
From December to February, thunderstorms can bring heavy rain, strong winds, and lightning.
These storms often result in localized flooding and traffic disruptions.
Heatwaves
Heatwaves can strike Buenos Aires, causing temperatures to soar above 100°F.
For instance, during the summer of 2022, the city experienced a severe heatwave, with temperatures reaching 106°F.
Such heatwaves can stress power grids, leading to power cuts.
The Pampero
The Pampero is a cold front that moves in from the south and southwest.
It typically follows hot, humid weather and can cause a dramatic drop in temperature. The Pampero often brings strong winds and heavy rain.
Droughts
During periods of low rainfall, Buenos Aires can experience droughts.
These droughts can last for months and severely impact water supply and agriculture. The drought of 2023 was particularly harsh, affecting both urban and rural areas.
| Month | Average High (°F) | Average Low (°F) | Rainfall (in) |
|---|---|---|---|
| January | 86 | 68 | 4.3 |
| February | 84 | 66 | 4.1 |
| March | 79 | 62 | 4.2 |
| April | 72 | 56 | 4.0 |
| May | 64 | 50 | 3.1 |
Air Masses
Air masses coming from different directions influence the city’s weather patterns.
Warm, humid air masses from the north can lead to heat and thunderstorms. Cold air masses from the south bring cooler temperatures and clear skies.
Best Time of the Year to Visit Buenos Aires, Argentina
Buenos Aires has a varied climate with each season offering unique experiences. Spring and fall are often considered the best times to visit due to mild weather and fewer crowds.
What is Buenos Aires, Argentina Like in Spring
Spring in Buenos Aires, from September to November, is marked by pleasant weather with temperatures ranging from 56°F to 75°F.
This season features blooming jacaranda trees, adding vibrant purple hues to the city.
Rainfall is moderate, approximately 3 inches per month, making it ideal for outdoor activities.
Tourist attractions aren’t overly crowded, and hotel prices are reasonable.
Popular events include the Buenos Aires International Festival of Independent Cinema.
What is Buenos Aires, Argentina Like in Summer
Summer in Buenos Aires, from December to February, is the hottest time of year.
Temperatures range from 70°F to 84°F but can occasionally reach the 90s.
Humidity levels are high, making it feel even hotter. Rainfall is also more frequent, with around 4 inches per month.
Despite the heat, the city is vibrant with events like the Carnival. However, this is also peak tourist season, so accommodation and flight prices tend to be higher.
What is Buenos Aires, Argentina Like in Fall
Fall in Buenos Aires, from March to May, offers mild and comfortable weather.
Temperatures range from 51°F to 72°F. The city experiences colorful foliage and pleasant conditions for sightseeing.
Rainfall decreases to about 2-3 inches monthly.
Fewer tourists mean less crowded attractions and lower hotel rates. Key events include the Buenos Aires International Book Fair and the Buenos Aires Jazz Festival.
What is Buenos Aires, Argentina Like in Winter
Winter in Buenos Aires, from June to August, is relatively mild compared to other regions.
Average temperatures range from 46°F to 61°F. The weather can be overcast but generally dry, with rainfall averaging around 2 inches per month.
Winter is the least crowded season, offering the lowest prices for accommodations and flights. It’s perfect for those who enjoy cooler, crisp days without the summer heat.
| Month | Avg High Temp (°F) | Avg Low Temp (°F) | Avg Rainfall (in) |
|---|---|---|---|
| January | 84 | 70 | 4 |
| April | 68 | 55 | 3.5 |
| July | 58 | 46 | 2 |
| October | 75 | 56 | 3 |