Forty Foot Sea Temperature

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

Water temperature in Forty Foot right now

Below is the current sea temperature for Forty Foot, Ireland on 23rd July 2024.

14.97° C

(58.94° F)

  • yesterday: 14.76° C (58.56° F)
  • a week ago: 15.06° C (59.11° F)

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

The average sea temperature for Forty Foot on July 23rd over the last 10 years is 15.84° C (60.51° F), with a low temperature of 12.71° C (54.88° F) and a high of 19.54° C (67.17° F).

Analysis and forecast for Forty Foot water temperatures

The water temperature in Forty Foot today is lower than the average temperature of 15.84° C (60.51° F) and the temperature on this day last year, 23rd July 2023, was 14.92° C (58.86° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
July 23 14.97° C 58.94° F
July 22 14.76° C 58.56° F
July 21 15.18° C 59.32° F
July 20 14.9° C 58.82° F
July 19 14.93° C 58.87° F
July 18 15.11° C 59.2° F
July 17 15° C 59° F
July 16 15.06° C 59.11° F
July 15 14.65° C 58.37° F
July 14 14.83° C 58.69° F
July 13 14.17° C 57.51° F
July 12 13.94° C 57.09° F
July 11 14.1° C 57.38° F
July 10 14.07° C 57.33° F
July 9 14.15° C 57.47° F
July 8 14.15° C 57.47° F
July 7 14.1° C 57.38° F
July 6 13.9° C 57.02° F
July 5 13.68° C 56.62° F
July 4 13.68° C 56.62° F
July 3 13.8° C 56.84° F
July 2 13.64° C 56.55° F
July 1 13.65° C 56.57° F
June 30 13.65° C 56.57° F
June 29 13.76° C 56.77° F
June 28 13.89° C 57° F
June 27 14.13° C 57.43° F
June 26 14.24° C 57.63° F
June 25 14.11° C 57.4° F
June 24 14.04° C 57.27° F
June 23 14° C 57.2° 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 Forty Foot by month

The chart below shows the monthly average water temperature in Forty Foot.

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

Forty Foot map and nearby water temperatures

Locations near Forty Foot

The highest temperature in Ireland today is 16.78° C (62.2° F) in Galway. The lowest is in Balbriggan, where the temperature of the water is 14.4° C (57.92° F).

Why measure sea surface temperatures (SST) in Forty Foot?

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

  • "Forty Foot Sea Temperature". Accessed on July 23, 2024.

  • "Forty Foot Sea Temperature"., Accessed 23 July, 2024

  • Forty Foot Sea Temperature. Retrieved from