Water temperature in Buenos Aires

This data the coastal Buenos Aires sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Buenos Aires

Water temperature in Buenos Aires today is 12.5°C. Based on our historical data over a period of ten years, the warmest water in this day in Buenos Aires was recorded in 2022 and was 14.6°C, and the coldest was recorded in 2019 at 11.2°C. Sea water temperature in Buenos Aires is expected to rise to 13.7°C in the next 10 days. September average water temperature in Buenos Aires is 13.5°C, the minimum temperature is 10.6°C, and the maximum is 17.6°C.

The swimming season in Buenos Aires lasts from November to April. During those months, Buenos Aires water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Buenos Aires in winter reaches 11.9°C, in spring 16.3°C, in summer the average temperature rises to 23.2°C, and in autumn it is 19.6°C.

Buenos Aires water temperature now

The sea salinity in Buenos Aires is 5.39‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Buenos Aires for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Buenos Aires. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Buenos Aires. Data in table shown for 8 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Buenos Aires

Buenos Aires weather forecast

Current temperature and weather

Data in a table show Buenos Aires temperature today (8 September 2025). For more information and forecast for a few days, go to the weather forecast Buenos Aires.

0-3 h	3-6 h	6-9 h	9-12 h
10.8°C	10.8°C	10.9°C	12.3°C

12-15 h	15-18 h	18-21 h	21-24 h
14.1°C	14.3°C	13.1°C	11.1°C

Buenos Aires water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Buenos Aires. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Buenos Aires on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Buenos Aires

The nearest beaches and cities from Buenos Aires with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Punta Rasa	12.5°C	14°C		0.47 m
San Clemente del Tuyu	12.4°C	14°C		0.48 m
Montevideo	12.7°C	14°C		0.47 m
Punta Indio	13.2°C	14°C		0.33 m
Playa Ramirez	13°C	15°C		0.32 m
Santiago Vazquez	13.3°C	16°C		0.2 m
Las Toninas	12°C	15°C		0.45 m
Pocitos	13°C	14°C		0.32 m
Santa Teresita	11.8°C	15°C		0.38 m
Canelones	12.9°C	14°C		0.36 m

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Our report for Buenos Aires is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.