Criccieth Sea Temperature

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

Water temperature in Criccieth right now

Below is the current sea temperature for Criccieth, United Kingdom on January 10, 2026.

Today

Yesterday

A week ago

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 Criccieth on January 10 over the last 10 years is 8.34° C (47.01° F), with a low temperature of 7.1° C (44.78° F) and a high of 10.2° C (50.36° F).

Analysis and forecast for Criccieth water temperatures

The water temperature in Criccieth today is the same as the average temperature of 8.34° C (47.01° F) and the temperature on this day last year was 8.34° C (47.01° F).

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

DateTemperature (Celsius)Temperature (Fahrenheit)
January 108.34° C47.01° F
January 98.27° C46.88° F
January 88.56° C47.4° F
January 78.76° C47.77° F
January 68.6° C47.49° F
January 58.68° C47.63° F
January 48.82° C47.88° F
January 38.71° C47.69° F
January 28.71° C47.67° F
January 18.62° C47.52° F
December 318.46° C47.24° F
December 308.5° C47.3° F
December 298.69° C47.64° F
December 288.58° C47.45° F
December 278.64° C47.55° F
December 268.62° C47.52° F
December 258.65° C47.57° F
December 248.72° C47.7° F
December 238.77° C47.78° F
December 228.8° C47.85° F
December 218.82° C47.87° F
December 208.94° C48.09° F
December 198.96° C48.13° F
December 189° C48.2° F
December 179.01° C48.22° F
December 169.02° C48.23° F
December 159.05° C48.3° F
December 149.12° C48.42° F
December 139.23° C48.62° F
December 129.42° C48.96° 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 Criccieth by month

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

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

Criccieth map and nearby water temperatures

Criccieth sea temperature map

Locations near Criccieth

Why measure sea surface temperatures (SST) in Criccieth?

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

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Criccieth 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 Criccieth 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.