Rio Grande Sea Temperature

Looking to find out what the sea water temperature in Rio Grande is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Rio Grande and nearby locations.

Water temperature in Rio Grande right now

Below is the current sea temperature for Rio Grande, Argentina on 21st April 2024.

8.01° C

(46.42° F)

  • yesterday: 8.05° C (46.49° F)
  • a week ago: 9.64° C (49.35° F)

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

The average sea temperature for Rio Grande on April 21st over the last 10 years is 8.8° C (47.84° F), with a low temperature of 7.59° C (45.66° F) and a high of 9.83° C (49.69° F).

Analysis and forecast for Rio Grande water temperatures

The water temperature in Rio Grande today is lower than the average temperature of 8.8° C (47.84° F) and the temperature on this day last year, 21st April 2023, was 7.81° C (46.06° F).

The chart and table below shows the change in water temperature in Rio Grande over the last 30 days:

Date Temperature (Celsius) Temperature (Fahrenheit)
April 21 8.01° C 46.42° F
April 20 8.05° C 46.49° F
April 19 9.38° C 48.88° F
April 18 9.44° C 48.99° F
April 17 9.5° C 49.1° F
April 16 9.32° C 48.78° F
April 15 9.31° C 48.76° F
April 14 9.64° C 49.35° F
April 13 9.7° C 49.46° F
April 12 9.45° C 49.01° F
April 11 9.33° C 48.79° F
April 10 9.23° C 48.61° F
April 9 9.14° C 48.45° F
April 8 9.19° C 48.54° F
April 7 9.34° C 48.81° F
April 6 9.63° C 49.33° F
April 5 9.61° C 49.3° F
April 4 9.57° C 49.23° F
April 3 9.6° C 49.28° F
April 2 9.62° C 49.32° F
April 1 9.72° C 49.5° F
March 31 9.42° C 48.96° F
March 30 9.77° C 49.59° F
March 29 9.88° C 49.78° F
March 28 9.98° C 49.96° F
March 27 10.04° C 50.07° F
March 26 10° C 50° F
March 25 9.67° C 49.41° F
March 24 9.68° C 49.42° F
March 23 9.71° C 49.48° F
March 22 9.7° C 49.46° F

The actual nearshore temperatures may vary by several degrees and this can also be heavily affected by weather. Strong winds can cause cold, deep waters to replace the surface waters that had been warmed by the sun, and heavy rain can also reduce the temperature of the sea surface temperature as well.

Water temperature in Rio Grande by month

The chart below shows the monthly average water temperature in Rio Grande.

For more detailed information on how the sea temperature in Rio Grande changes for each month of the year, choose from the months below.

Rio Grande map and nearby water temperatures

The highest temperature in Argentina today is 24.03° C (75.26° F) in Puerto Iguazu. The lowest is in Argentino Lake, where the temperature of the water is 7.8° C (46.04° F).

Why measure sea surface temperatures (SST) in Rio Grande?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Rio Grande because they want to understand and learn how the ocean communicates with the atomosphere of Earth.

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Rio Grande as well as atmospheric model simulations and to study marine ecosystems in the area.

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Rio Grande comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.

  • "Rio Grande Sea Temperature". Accessed on April 21, 2024.

  • "Rio Grande Sea Temperature"., Accessed 21 April, 2024

  • Rio Grande Sea Temperature. Retrieved from