Llansteffan Sea Temperature

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

Water temperature in Llansteffan right now

Below is the current sea temperature for Llansteffan, United Kingdom on 25th April 2024.

10.21° C

(50.37° F)

  • yesterday: 11.35° C (52.43° F)
  • a week ago: 11° C (51.8° 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 Llansteffan on April 25th over the last 10 years is 9.96° C (49.93° F), with a low temperature of 8.53° C (47.35° F) and a high of 11.49° C (52.68° F).

Analysis and forecast for Llansteffan water temperatures

The water temperature in Llansteffan today is higher than the average temperature of 9.96° C (49.93° F) and the temperature on this day last year, 25th April 2023, was 10.08° C (50.14° F).

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

Date Temperature (Celsius) Temperature (Fahrenheit)
April 25 10.21° C 50.37° F
April 24 11.35° C 52.43° F
April 23 11.21° C 52.18° F
April 22 11.16° C 52.09° F
April 21 11.36° C 52.45° F
April 20 11.29° C 52.32° F
April 19 11.03° C 51.85° F
April 18 11° C 51.8° F
April 17 10.94° C 51.69° F
April 16 11.01° C 51.82° F
April 15 10.9° C 51.62° F
April 14 10.93° C 51.67° F
April 13 10.48° C 50.86° F
April 12 10.58° C 51.04° F
April 11 10.45° C 50.81° F
April 10 10.45° C 50.81° F
April 9 10.25° C 50.45° F
April 8 10.26° C 50.47° F
April 7 10.33° C 50.59° F
April 6 10.34° C 50.61° F
April 5 10.27° C 50.49° F
April 4 10.01° C 50.02° F
April 3 9.86° C 49.75° F
April 2 10° C 50° F
April 1 10.1° C 50.18° F
March 31 9.96° C 49.93° F
March 30 9.84° C 49.71° F
March 29 9.84° C 49.71° F
March 28 9.84° C 49.71° F
March 27 9.83° C 49.69° F
March 26 9.89° C 49.8° 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 Llansteffan by month

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

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

Llansteffan map and nearby water temperatures

Locations near Llansteffan

The highest temperature in United Kingdom today is 10.95° C (51.7° F) in Portscatho. The lowest is in Bridlington, where the temperature of the water is 7.9° C (46.21° F).

Why measure sea surface temperatures (SST) in Llansteffan?

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

  • "Llansteffan Sea Temperature". SeaTemperatures.net. Accessed on April 25, 2024. http://seatemperatures.net/europe/united-kingdom/llansteffan/.

  • "Llansteffan Sea Temperature". SeaTemperatures.net, http://seatemperatures.net/europe/united-kingdom/llansteffan/. Accessed 25 April, 2024

  • Llansteffan Sea Temperature. SeaTemperatures.net. Retrieved from http://seatemperatures.net/europe/united-kingdom/llansteffan/.