Climate for Station: Bahia Blanca Aero, Buenos Aires, Argentina

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Villa Espora

Buenos Aires, Argentina

2026-02-28 23:31

24.2°C

Feels 24.2°C

H: 32.5°C / L: 20°C

Precip: 0mm | Wind: 13.3 kph

▲ 3.3°C vs historical high

Clear

2026-03-01

H: 37.3°C

L: 24°C

Rain: 0%

Rainfall: 0mm

Wind: 32kph

▲ 7.7°C

2026-03-02

H: 30.3°C

L: 18.6°C

Rain: 84%

Rainfall: 8.68mm

Wind: 41.4kph

▲ 1.4°C

2026-03-03

H: 29.4°C

L: 17.2°C

Rain: 0%

Rainfall: 0mm

Wind: 19.1kph

▲ 0.3°C

2026-03-04

H: 23.3°C

L: 16.2°C

Rain: 85%

Rainfall: 0.25mm

Wind: 31kph

▼ 5.5°C

2026-03-05

H: 24.2°C

L: 12.8°C

Rain: 0%

Rainfall: 0mm

Wind: 29.2kph

▼ 4.3°C

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Climate Analysis & Overview

Bahia Blanca Aero is experiencing a complex climate narrative characterised by a warming trend in high temperatures and a slight cooling in low temperatures over the past decade. The increase in the Precipitation Concentration Index suggests more intense rainfall events, reflecting broader regional climate challenges in Argentina.

Warming Highs, Cooling Lows

Bahia Blanca Aero, located in the temperate climate zone of Argentina, exhibits a notable divergence between high and low temperature trends. Over the past decade, the region has witnessed a warming of high temperatures by 1.26°C (2.27°F), contrasting with a slight cooling of low temperatures by 0.07°C (0.13°F). This duality is intriguing, as the all-time trends show a more modest warming of highs by 0.32°C (0.58°F) and an almost negligible warming of lows by 0.02°C (0.04°F). These shifts suggest a more pronounced variability in daily temperature ranges, possibly influenced by the station's proximity to the Atlantic Ocean, which moderates extreme temperatures but can also introduce variability.

Precipitation Patterns Intensify

The Precipitation Concentration Index (PCI) at Bahia Blanca Aero has increased from a baseline of 13.35 to a current value of 15.71. This rise indicates a shift towards more concentrated rainfall events, where precipitation is occurring in fewer, more intense bursts rather than being evenly distributed throughout the year. Such a pattern can lead to challenges in water management and agriculture, as the region may experience periods of drought punctuated by heavy rainfall. This change aligns with broader climatic observations in Argentina, where shifts in precipitation patterns are becoming more pronounced.

Temperature Extremes and Records

The station's historical temperature records highlight the potential for extreme weather events. The maximum recorded temperature is 43.8°C (110.8°F), while the minimum is -11.8°C (10.8°F). These extremes underscore the variability inherent in the region's climate, influenced by its geographical position and the interplay of oceanic and continental air masses. Such variability is critical for understanding potential future climate scenarios, especially in the context of global warming.

Regional Climate Goals and Implications

Argentina's commitment to addressing climate change is reflected in its national climate goals, which aim to reduce greenhouse gas emissions and enhance resilience to climate impacts. The trends observed at Bahia Blanca Aero provide valuable insights into the local manifestations of these broader goals. The warming trend in high temperatures and the increased concentration of precipitation events highlight the need for adaptive strategies in agriculture and urban planning to mitigate potential impacts on the local economy and infrastructure.

Köppen Classification and Local Geography

Bahia Blanca Aero falls within the Cfa classification of the Köppen climate system, denoting a humid subtropical climate with hot summers and no dry season. The local geography, characterised by its proximity to the Atlantic Ocean and the Pampas region, plays a significant role in shaping its climate. The ocean's moderating influence can lead to milder winters and cooler summers, yet the observed warming trends suggest that these influences are being altered, potentially due to broader climatic changes affecting the region.

Station Statistics

10-Year Trend

High: +1.24 °C/decade

Low: -0.03 °C/decade

Rain: -0.24 mm/decade

25-Year Trend

High: +0.67 °C/decade

Low: -0.27 °C/decade

Rain: -0.04 mm/decade

50-Year Trend

High: +0.50 °C/decade

Low: +0.01 °C/decade

Rain: -0.14 mm/decade

All-Time Trend

High: +0.32 °C/decade

Low: +0.02 °C/decade

Rain: -0.13 mm/decade

Percentage Above-Average Days

Last 12 Months: 49.9%

This Year: 40.0%

Precipitation Concentration Index (PCI) ℹ️

Last 12 Months: 18.5

Historical Average: 13.9

Percentile Rank of Last 12 Months ℹ️

High: 93^rd percentile

Low: 30^th percentile

Rain: 68^th percentile

Change in Variance ℹ️

High: +6.0%

Low: +4.5%

Intraday: -9.3%

Data Coverage

87.8%

First Year of Data

1956

Station Location

Historical Weather Records

	Max High	Avg High	Min High	Max Avg	Avg Avg	Min Avg	Max Low	Avg Low	Min Low	Max Precipitation	Avg Precipitation	Max Snow	Avg Snow
Record	43.8 °C	—	3.5 °C	35.1 °C	—	-2.9 °C	28.5 °C	—	-11.8 °C	335.0 mm	—	—	—
January	43.8 °C	31.5 °C	15.5 °C	35.1 °C	23.6 °C	14.1 °C	28.5 °C	16.1 °C	3.0 °C	181.1 mm	3.0 mm	—	—
February	41.3 °C	30.0 °C	14.5 °C	33.4 °C	22.3 °C	10.9 °C	27.7 °C	15.1 °C	1.0 °C	89.9 mm	2.7 mm	—	—
March	40.1 °C	26.8 °C	13.4 °C	31.3 °C	19.6 °C	7.7 °C	25.2 °C	13.0 °C	-1.5 °C	179.1 mm	3.2 mm	—	—
April	36.7 °C	21.9 °C	8.6 °C	26.5 °C	15.2 °C	5.4 °C	21.8 °C	9.0 °C	-3.4 °C	129.0 mm	2.3 mm	—	—
May	30.4 °C	17.6 °C	6.5 °C	22.3 °C	11.3 °C	0.8 °C	19.4 °C	5.9 °C	-6.4 °C	89.4 mm	1.6 mm	—	—
June	27.8 °C	14.1 °C	3.5 °C	19.7 °C	8.4 °C	-1.2 °C	17.0 °C	3.1 °C	-9.8 °C	104.9 mm	1.1 mm	—	—
July	27.0 °C	13.9 °C	3.9 °C	20.7 °C	7.9 °C	-2.9 °C	17.2 °C	2.5 °C	-11.8 °C	67.6 mm	1.1 mm	—	—
August	32.6 °C	16.3 °C	4.4 °C	23.4 °C	9.7 °C	-0.6 °C	18.4 °C	3.5 °C	-7.9 °C	60.9 mm	1.1 mm	—	—
September	32.5 °C	18.9 °C	7.0 °C	23.3 °C	11.9 °C	0.8 °C	18.2 °C	5.4 °C	-7.3 °C	129.0 mm	1.9 mm	—	—
October	39.0 °C	22.1 °C	9.7 °C	29.7 °C	15.0 °C	5.3 °C	21.6 °C	8.2 °C	-4.5 °C	89.9 mm	2.6 mm	—	—
November	38.4 °C	26.2 °C	11.7 °C	29.9 °C	18.7 °C	7.1 °C	23.6 °C	11.4 °C	-1.5 °C	335.0 mm	2.8 mm	—	—
December	43.6 °C	29.8 °C	14.6 °C	33.9 °C	21.9 °C	11.3 °C	26.6 °C	14.3 °C	2.4 °C	331.0 mm	2.5 mm	—	—