Alert Bay Sea Temperature

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

Water temperature in Alert Bay right now

Below is the current sea temperature for Alert Bay, Canada 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 Alert Bay on January 10 over the last 10 years is 7.37° C (45.27° F), with a low temperature of 5.83° C (42.49° F) and a high of 8.24° C (46.83° F).

Analysis and forecast for Alert Bay water temperatures

The water temperature in Alert Bay today is the same as the average temperature of 7.37° C (45.27° F) and the temperature on this day last year was 7.37° C (45.27° F).

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

DateTemperature (Celsius)Temperature (Fahrenheit)
January 107.37° C45.27° F
January 97.38° C45.29° F
January 87.48° C45.47° F
January 77.54° C45.57° F
January 67.63° C45.73° F
January 57.65° C45.76° F
January 47.67° C45.8° F
January 37.67° C45.8° F
January 27.69° C45.84° F
January 17.66° C45.79° F
December 317.62° C45.72° F
December 307.68° C45.83° F
December 297.73° C45.91° F
December 287.62° C45.71° F
December 277.78° C46° F
December 267.83° C46.09° F
December 257.82° C46.07° F
December 247.82° C46.08° F
December 237.79° C46.02° F
December 227.85° C46.14° F
December 217.95° C46.31° F
December 207.86° C46.14° F
December 197.84° C46.12° F
December 187.77° C45.99° F
December 177.68° C45.82° F
December 167.66° C45.79° F
December 157.76° C45.96° F
December 147.92° C46.26° F
December 137.97° C46.35° F
December 128.1° C46.58° 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 Alert Bay by month

The chart below shows the monthly average water temperature in Alert Bay.

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

Alert Bay map and nearby water temperatures

Alert Bay sea temperature map

Locations near Alert Bay

Why measure sea surface temperatures (SST) in Alert Bay?

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