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Climate in San Antonio Oeste (Argentina)


Average weather, temperature, rainfall, sunshine hours

Flag - Argentina

San Antonio Oeste (Argentina), position the map


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Climate chart - San Antonio Oeste
The climate of San Antonio Oeste is subtropical semi-arid, with relatively mild winters (during which it can get cold at night) and hot summers (but with generally cool nights). The wind blows frequently.
Even though it is located on the coast, the city is is subject to sudden changes in temperature, in fact, it is exposed both to outbreaks of cold air of Antarctic origin and to invasions of hot air of tropical origin.
In summer, from December to February, it can sometimes get cold at night, while in other circumstances there can be heat waves. The highest recorded temperature was 44.6 °C (112.2 °F), set in January 1980. In any case, the wind blows frequently even in this season, moreover, the sea is not warm.
In winter, from June to August, snow is very rare, but at night the temperature can drop below freezing. The lowest recorded temperature was -11.5 °C (11.3 °F), set in June 2002.

San Antonio Oeste is a town of 16,000 inhabitants located in Argentina, at 40 degrees south latitude, in the province of Río Negro, and on the coast of the Golfo San Matias. We are on the northern edge of Patagonia.

San Antonio Oeste - Climate data


In San Antonio Oeste, the average temperature of the coldest month (July) is of 7.2 °C, that of the warmest month (January) is of 23 °C. Here are the average temperatures.
San Antonio Oeste - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January15.730.423
February14.629.221.9
March12.326.419.4
April7.821.514.6
May4.616.910.8
June2.113.88
July113.47.2
August2.515.89.2
September4.318.111.2
October7.72214.8
November11.125.918.5
December13.828.921.4
Year8.121.814.95

Precipitation amounts to 295 millimeters per year: it is therefore scarce. It ranges from 16.6 millimeters in the driest month (August) to 37.6 millimeters in the wettest one (April). Here is the average precipitation.
San Antonio Oeste - Average precipitation
MonthRain (mm)Days
January193
February273
March333
April383
May284
June263
July213
August172
September183
October283
November193
December192
Year29535

The sea temperature ranges from 10.5 °C in August to 19 °C in February. Here are the average sea temperatures.
San Antonio Oeste - Sea temperature
MonthTemperatures (°C)
January18
February19
March18.5
April17
May15
June13
July11.5
August10.5
September11
October12
November14">
December16
Year14.6

There are on average around 2590 sunshine hours per year. Here are the average hours of sunshine per day.
San Antonio Oeste - Sunshine hours
MonthAverageTotal
January10315
February9.5270
March7.5240
April6.5190
May5150
June4125
July5150
August5.5165
September6180
October7.5235
November9270
December9.5290
Year7.12590

San Antonio Oeste - Weather by month

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


January, the warmest month of the year, is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of 23 °C, with a minimum of 15.7 °C and a maximum of 30.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 8 °C. However, it dropped to 4 °C in January 2017.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 39.5 °C. However, it reached 43.5 °C in January 2018.
Rain iconPrecipitation amounts to 19.4 mm, distributed over 3 days.
The day lasts on average 14 hours and 40 minutes. So the days are long.
Sun iconThere are on average 10 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 39%.
The average wind speed is of 24 kph.
Sea iconThe average sea temperature is of 18.2 °C. Therefore, the sea is cold for swimming.


February is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 21.9 °C, with a minimum of 14.6 °C and a maximum of 29.2 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 6.5 °C. However, it dropped to 3 °C in February 1994.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 38.5 °C. However, it reached 41.4 °C in February 2006.
Rain iconPrecipitation amounts to 27.3 mm, distributed over 3 days.
The day lasts on average 13 hours and 35 minutes.
Sun iconThere are on average 9.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 44%.
The average wind speed is of 23.3 kph.
Sea iconThe average sea temperature is of 18.9 °C. Therefore, the sea is very cool for swimming.


March is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 19.4 °C, with a minimum of 12.3 °C and a maximum of 26.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 3.5 °C. However, it dropped to 0.3 °C in March 2000.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 36.5 °C. However, it reached 40 °C in March 2003.
Rain iconPrecipitation amounts to 33.4 mm, distributed over 3 days.
The day lasts on average 12 hours and 20 minutes.
Sun iconThere are on average 7.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 48%.
The average wind speed is of 21.5 kph.
Sea iconThe average sea temperature is of 18.6 °C. Therefore, the sea is very cool for swimming.


April is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of 14.6 °C, with a minimum of 7.8 °C and a maximum of 21.5 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -0.5 °C. However, it dropped to -4 °C in April 2016.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 30.5 °C. However, it reached 34.7 °C in April 2009.
Rain iconPrecipitation amounts to 37.6 mm, distributed over 3 days.
The day lasts on average 11 hours and 0 minutes.
Sun iconThere are on average 6.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 54%.
The average wind speed is of 19.7 kph.
Sea iconThe average sea temperature is of 16.9 °C. Therefore, the sea is cold for swimming.


May is generally a mild month. The average temperature is of 10.8 °C, with a minimum of 4.6 °C and a maximum of 16.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -3.5 °C. However, it dropped to -8 °C in May 1993.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 25 °C. However, it reached 32.1 °C in May 2010.
Rain iconPrecipitation amounts to 28.4 mm, distributed over 4 days.
The day lasts on average 9 hours and 50 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 62%.
The average wind speed is of 18.4 kph.
Sea iconThe average sea temperature is of 14.9 °C. Therefore, the sea is cold for swimming.


June is generally a quite mild month. The average temperature is of 8 °C, with a minimum of 2.1 °C and a maximum of 13.8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -6 °C. However, it dropped to -11.5 °C in June 2002.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 20.5 °C. However, it reached 26.6 °C in June 2015.
Rain iconPrecipitation amounts to 25.7 mm, distributed over 3 days.
The day lasts on average 9 hours and 20 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
Sun iconThere are on average 4 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 63%.
The average wind speed is of 19.5 kph.
Sea iconThe average sea temperature is of 13 °C. Therefore, the sea is very cold for swimming.


July, the coldest month of the year, is generally a quite mild month. The average temperature is of 7.2 °C, with a minimum of 1 °C and a maximum of 13.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -7 °C. However, it dropped to -11.2 °C in July 1995.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 21 °C. However, it reached 24.9 °C in July 2008.
Rain iconPrecipitation amounts to 20.9 mm, distributed over 3 days.
The day lasts on average 9 hours and 35 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 60%.
The average wind speed is of 19.8 kph.
Sea iconThe average sea temperature is of 11.5 °C. Therefore, the sea is very cold for swimming.


August is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of 9.2 °C, with a minimum of 2.5 °C and a maximum of 15.8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -6 °C. However, it dropped to -11.1 °C in August 2010.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 24 °C. However, it reached 27.9 °C in August 2006.
Rain iconPrecipitation amounts to 16.6 mm, distributed over 2 days.
The day lasts on average 10 hours and 35 minutes.
Sun iconThere are on average 5.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 53%.
The average wind speed is of 20.2 kph.
Sea iconThe average sea temperature is of 10.6 °C. Therefore, the sea is very cold for swimming.


September is generally a mild month. However, there are remarkable differences between night and day. The average temperature is of 11.2 °C, with a minimum of 4.3 °C and a maximum of 18.1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -4 °C. However, it dropped to -7.8 °C in September 2010.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 27.5 °C. However, it reached 33 °C in September 1996.
Rain iconPrecipitation amounts to 17.9 mm, distributed over 3 days.
The day lasts on average 11 hours and 55 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 50%.
The average wind speed is of 20 kph.
Sea iconThe average sea temperature is of 10.8 °C. Therefore, the sea is very cold for swimming.


October is generally a very mild month. However, there are remarkable differences between night and day. The average temperature is of 14.8 °C, with a minimum of 7.7 °C and a maximum of 22 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -0.5 °C. However, it dropped to -5.5 °C in October 2019.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 31.5 °C. However, it reached 36.5 °C in October 2003.
Rain iconPrecipitation amounts to 27.8 mm, distributed over 3 days.
The day lasts on average 13 hours and 10 minutes.
Sun iconThere are on average 7.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 46%.
The average wind speed is of 21.9 kph.
Sea iconThe average sea temperature is of 12.1 °C. Therefore, the sea is very cold for swimming.


November is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 18.5 °C, with a minimum of 11.1 °C and a maximum of 25.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 2.5 °C. However, it dropped to 0.2 °C in November 2010.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 35 °C. However, it reached 41 °C in November 2008.
Rain iconPrecipitation amounts to 19 mm, distributed over 3 days.
The day lasts on average 14 hours and 25 minutes. So the days are long.
Sun iconThere are on average 9 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 42%.
The average wind speed is of 22.8 kph.
Sea iconThe average sea temperature is of 14 °C. Therefore, the sea is very cold for swimming.


December is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of 21.4 °C, with a minimum of 13.8 °C and a maximum of 28.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 5.5 °C. However, it dropped to 0.5 °C in December 2001.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 38 °C. However, it reached 41.6 °C in December 2015.
Rain iconPrecipitation amounts to 19.4 mm, distributed over 2 days.
The day lasts on average 15 hours and 0 minutes. So the days are long. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
Sun iconThere are on average 9.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 39%.
The average wind speed is of 23.6 kph.
Sea iconThe average sea temperature is of 16.2 °C. Therefore, the sea is cold for swimming.

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