Cascais Sea Temperature

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

Water temperature in Cascais right now

Below is the current sea temperature for Cascais, Portugal on 29th March 2024.

16.53° C

(61.76° F)

  • yesterday: 16.46° C (61.63° F)
  • a week ago: 15.73° C (60.31° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

The average sea temperature for Cascais on March 29th over the last 10 years is 15.14° C (59.26° F), with a low temperature of 13.99° C (57.18° F) and a high of 16.55° C (61.79° F).

Analysis and forecast for Cascais water temperatures

The water temperature in Cascais today is higher than the average temperature of 15.14° C (59.26° F) and the temperature on this day last year, 29th March 2023, was 16.55° C (61.79° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
March 29 16.53° C 61.76° F
March 28 16.46° C 61.63° F
March 27 15.46° C 59.83° F
March 26 15.56° C 60.01° F
March 25 15.62° C 60.12° F
March 24 15.71° C 60.28° F
March 23 15.95° C 60.71° F
March 22 15.73° C 60.31° F
March 21 15.53° C 59.95° F
March 20 15.77° C 60.39° F
March 19 15.77° C 60.39° F
March 18 15.51° C 59.92° F
March 17 15.27° C 59.49° F
March 16 15.47° C 59.85° F
March 15 15.28° C 59.5° F
March 14 15.04° C 59.07° F
March 13 15.19° C 59.34° F
March 12 15.16° C 59.29° F
March 11 15.08° C 59.14° F
March 10 15° C 59° F
March 9 15.02° C 59.04° F
March 8 15.07° C 59.13° F
March 7 15.1° C 59.18° F
March 6 15.17° C 59.31° F
March 5 15.24° C 59.43° F
March 4 15.3° C 59.54° F
March 3 15.48° C 59.86° F
March 2 15.67° C 60.21° F
March 1 15.84° C 60.51° F
February 29 16.01° C 60.82° F
February 28 16.12° C 61.02° 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 Cascais by month

The chart below shows the monthly average water temperature in Cascais.

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

Cascais map and nearby water temperatures

Locations near Cascais

The highest temperature in Portugal today is 19.58° C (67.25° F) in Campanario. The lowest is in Aver-o-Mar, where the temperature of the water is 14.82° C (58.68° F).

Why measure sea surface temperatures (SST) in Cascais?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Cascais 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 Cascais 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 Cascais 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.

  • "Cascais Sea Temperature". SeaTemperatures.net. Accessed on March 29, 2024. http://seatemperatures.net/europe/portugal/cascais/.

  • "Cascais Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/europe/portugal/cascais/. Accessed 29 March, 2024

  • Cascais Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/europe/portugal/cascais/.