Bornholm Sea Temperature

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

Water temperature in Bornholm right now

Below is the current sea temperature for Bornholm, Denmark 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 Bornholm on January 10 over the last 10 years is 5.62° C (42.11° F), with a low temperature of 3.92° C (39.06° F) and a high of 9.07° C (48.33° F).

Analysis and forecast for Bornholm water temperatures

The water temperature in Bornholm today is the same as the average temperature of 5.62° C (42.11° F) and the temperature on this day last year was 5.62° C (42.11° F).

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

DateTemperature (Celsius)Temperature (Fahrenheit)
January 105.62° C42.11° F
January 95.68° C42.23° F
January 85.69° C42.25° F
January 75.78° C42.41° F
January 65.77° C42.39° F
January 55.84° C42.52° F
January 45.97° C42.75° F
January 36.08° C42.94° F
January 26.22° C43.2° F
January 16.29° C43.33° F
December 316.35° C43.43° F
December 306.2° C43.16° F
December 296.18° C43.12° F
December 286.33° C43.39° F
December 276.41° C43.53° F
December 266.42° C43.55° F
December 256.55° C43.79° F
December 246.58° C43.85° F
December 236.55° C43.79° F
December 226.7° C44.06° F
December 216.76° C44.17° F
December 206.86° C44.35° F
December 196.83° C44.3° F
December 186.88° C44.38° F
December 176.85° C44.33° F
December 166.91° C44.43° F
December 157.02° C44.64° F
December 147.03° C44.66° F
December 137.02° C44.63° F
December 127.14° C44.84° 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 Bornholm by month

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

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

Bornholm map and nearby water temperatures

Bornholm sea temperature map

Locations near Bornholm

Why measure sea surface temperatures (SST) in Bornholm?

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