Climate - Bahia Blanca (Argentina)

The climate of Bahía Blanca is temperate oceanic, with mild winters and hot summers. Winter is a fairly dry season, while the wettest period is from October to March. The wind blows frequently.
The city is located in central Argentina, in the southern part of the Pampa, on the coast of the Atlantic Ocean, southwest of Mar del Plata.
Even though it is located on the coast, the city is exposed both to outbreaks of cold air of Antarctic origin and to invasions of hot air of tropical origin, therefore it is subject to sudden changes in temperature.
The highest recorded temperature was 44 °C (111 °F) on January 21, 1980, while the lowest was -12 °C (11 °F) on July 4, 1988.
In summer, it can sometimes get cold at night, while in other circumstances there can be heat waves. In any case, the wind blows frequently even in this season, moreover, the sea is not warm.
In winter, fog can sometimes form. Snow is rare, but at night the temperature can drop below freezing.

The average temperature of the coldest month (July) is of 8.3 °C (47.0 °F), that of the warmest month (January) is of 24.3 °C (75.8 °F). Here are the average temperatures.
Precipitation amounts to 650 millimeters (25.6 inches) per year: so, it is at an intermediate level. It ranges from 30 mm (1.2 in) in the driest months (June, July) to 75 mm (3 in) in the wettest ones (March, October) Here is the average precipitation.
The sea temperature ranges from 11 °C (11 °F) in August to 21 °C (21 °F) in February. Here are the average sea temperatures.
On average, there are around 2315 sunshine hours per year. Here are the average sunshine hours per day.

Bahia Blanca - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)

In January, the warmest month of the year, the average temperature is of 24.3 °C (76 °F), with a minimum of 16.3 °C (61.4 °F) and a maximum of 32.4 °C (90.2 °F).
On the coldest nights of the month, the temperature usually drops to around 8 °C (46 °F). However, in January 2015, it dropped to 3.7 °C (38.7 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (101 °F). However, in January 2006, it reached 41.4 °C (106.5 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 8 days.
On average, there are 300 hours of sunshine per month, i.e. 9.5 hours per day.
The average humidity is 50%.
The average wind speed is 24 kph (15 kph).
The average sea temperature is of 20.5 °C (68.5 °F).

In February, the average temperature is of 22.9 °C (73 °F), with a minimum of 15.2 °C (59.4 °F) and a maximum of 30.7 °C (87.2 °F).
On the coldest nights of the month, the temperature usually drops to around 7 °C (44.5 °F). However, in February 2019, it dropped to 2.5 °C (36.5 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F). However, in February 2006, it reached 40.6 °C (105.1 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 6 days.
On average, there are 255 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 56%.
The average wind speed is 22 kph (14 kph).
The average sea temperature is of 21 °C (70 °F).

In March, the average temperature is of 20.7 °C (69 °F), with a minimum of 13.3 °C (55.9 °F) and a maximum of 28.1 °C (82.5 °F).
On the coldest nights of the month, the temperature usually drops to around 5 °C (41 °F). However, in March 2008, it dropped to 0.8 °C (33.4 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (94.5 °F). However, in March 2003, it reached 39 °C (102.2 °F).
Precipitation amounts to 75 mm (3 in), distributed over 8 days.
On average, there are 195 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 61%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 20.5 °C (69 °F).

In April, the average temperature is of 16.0 °C (61 °F), with a minimum of 9.2 °C (48.5 °F) and a maximum of 22.9 °C (73.3 °F).
On the coldest nights of the month, the temperature usually drops to around 1 °C (33.5 °F). However, in April 2010, it dropped to -2.6 °C (27.3 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, in April 2018, it reached 33.8 °C (92.8 °F).
Precipitation amounts to 55 mm (2.2 in), distributed over 7 days.
On average, there are 190 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 67%.
The average wind speed is 20 kph (12 kph).
The average sea temperature is of 18.5 °C (65.5 °F).

In May, the average temperature is of 12.2 °C (54 °F), with a minimum of 6 °C (42.7 °F) and a maximum of 18.5 °C (65.3 °F).
On the coldest nights of the month, the temperature usually drops to around -2 °C (29 °F). However, in May 2007, it dropped to -5.5 °C (22.1 °F).
On the warmest days of the month, the temperature usually reaches around 25 °C (77.5 °F). However, in May 2009, it reached 31.8 °C (89.2 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 6 days.
On average, there are 125 hours of sunshine per month, i.e. 4 hours per day.
The average humidity is 73%.
The average wind speed is 19 kph (12 kph).
The average sea temperature is of 16 °C (61 °F).

In June, the average temperature is of 9.1 °C (48 °F), with a minimum of 2.9 °C (37.3 °F) and a maximum of 15.2 °C (59.3 °F).
On the coldest nights of the month, the temperature usually drops to around -4.5 °C (24 °F). However, in June 2002, it dropped to -9.8 °C (14.4 °F).
On the warmest days of the month, the temperature usually reaches around 21 °C (69.5 °F). However, in June 2013, it reached 24.5 °C (76.1 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
On average, there are 110 hours of sunshine per month, i.e. 3.5 hours per day.
The average humidity is 72%.
The average wind speed is 20 kph (13 kph).
The average sea temperature is of 14 °C (57 °F).

In July, the coldest month of the year, the average temperature is of 8.3 °C (47 °F), with a minimum of 1.9 °C (35.5 °F) and a maximum of 14.7 °C (58.4 °F).
On the coldest nights of the month, the temperature usually drops to around -5 °C (23 °F). However, in July 2007, it dropped to -10 °C (14 °F).
On the warmest days of the month, the temperature usually reaches around 21.5 °C (71 °F). However, in July 2008, it reached 27 °C (80.6 °F).
Precipitation amounts to 30 mm (1.2 in), distributed over 6 days.
On average, there are 110 hours of sunshine per month, i.e. 3.5 hours per day.
The average humidity is 70%.
The average wind speed is 20 kph (12 kph).
The average sea temperature is of 12 °C (53.5 °F).

In August, the average temperature is of 10.6 °C (51 °F), with a minimum of 3.7 °C (38.7 °F) and a maximum of 17.5 °C (63.4 °F).
On the coldest nights of the month, the temperature usually drops to around -3.5 °C (25.5 °F). However, in August 2013, it dropped to -7.9 °C (17.8 °F).
On the warmest days of the month, the temperature usually reaches around 25.5 °C (77.5 °F). However, in August 2013, it reached 32.6 °C (90.7 °F).
Precipitation amounts to 35 mm (1.4 in), distributed over 5 days.
On average, there are 145 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 64%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 11 °C (52 °F).

In September, the average temperature is of 12.7 °C (55 °F), with a minimum of 5.6 °C (42 °F) and a maximum of 19.9 °C (67.8 °F).
On the coldest nights of the month, the temperature usually drops to around -3 °C (26.5 °F). However, in September 2008, it dropped to -5.8 °C (21.6 °F).
On the warmest days of the month, the temperature usually reaches around 27.5 °C (81.5 °F). However, in September 2013, it reached 30.5 °C (86.9 °F).
Precipitation amounts to 50 mm (2 in), distributed over 7 days.
On average, there are 155 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 61%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 11.5 °C (52.5 °F).

In October, the average temperature is of 15.9 °C (61 °F), with a minimum of 8.6 °C (47.4 °F) and a maximum of 23.2 °C (73.7 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (33 °F). However, in October 2011, it dropped to -3.2 °C (26.2 °F).
On the warmest days of the month, the temperature usually reaches around 30.5 °C (86.5 °F). However, in October 1999, it reached 34.5 °C (94.1 °F).
Precipitation amounts to 75 mm (3 in), distributed over 9 days.
On average, there are 200 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 61%.
The average wind speed is 21 kph (13 kph).
The average sea temperature is of 13 °C (55.5 °F).

In November, the average temperature is of 19.4 °C (67 °F), with a minimum of 11.6 °C (53 °F) and a maximum of 27.2 °C (80.9 °F).
On the coldest nights of the month, the temperature usually drops to around 3 °C (37.5 °F). However, in November 2007, it dropped to -0.4 °C (31.3 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93 °F). However, in November 2008, it reached 37.5 °C (99.5 °F).
Precipitation amounts to 55 mm (2.2 in), distributed over 7 days.
On average, there are 250 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 55%.
The average wind speed is 22 kph (14 kph).
The average sea temperature is of 15.5 °C (60 °F).

In December, the average temperature is of 22.8 °C (73 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 30.9 °C (87.6 °F).
On the coldest nights of the month, the temperature usually drops to around 6 °C (43 °F). However, in December 2018, it dropped to 2.8 °C (37 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F). However, in December 2013, it reached 40.8 °C (105.4 °F).
Precipitation amounts to 65 mm (2.6 in), distributed over 7 days.
On average, there are 265 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 49%.
The average wind speed is 24 kph (15 kph).
The average sea temperature is of 18 °C (65 °F).