This data the coastal Coffin Bay ocean water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Water temperature in Coffin Bay today is 14.1°C. Based on our historical data over a period of ten years, the warmest water in this day in the Great Australian Bight near Coffin Bay was recorded in 2013 and was 15.9°C, and the coldest was recorded in 2010 at 13.4°C. Sea water temperature in Coffin Bay is expected to rise to 14.7°C in the next 10 days. September average water temperature in Coffin Bay is 14.8°C, the minimum temperature is 13.3°C, and the maximum is 17°C.
Throughout the year, the water temperature in Coffin Bay does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of January, March, the water temperature warms up to 20°C and above. The average water temperature in Coffin Bay in winter reaches 14.8°C, in spring 15.9°C, in summer the average temperature rises to 18.1°C, and in autumn it is 17.3°C.
5 September 2025 |
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today temp |
14.1°C |
4 September 2025 |
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yesterday temp |
14.1°C |
The ocean salinity in Coffin Bay is 35.48‰, and the average salinity of the World Ocean is 35‰.
Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Coffin Bay. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Coffin Bay. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
3' 6" | 3' 5" | 3' 3" | 3' 4" |
1.07 m | 1.03 m | 0.99 m | 1.01 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
3' 3" | 3' 3" | 2' 11" | 2' 6" |
0.98 m | 0.99 m | 0.89 m | 0.76 m |
Data in a table show Coffin Bay temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Coffin Bay.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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9.9°C | 9.8°C | 10°C | 12°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
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16.8°C | 19.5°C | 15°C | 16.1°C |
You may also be interested in other sections of our site for Coffin Bay: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Coffin Bay. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Coffin Bay on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
Month | Avr | Min | Max | |
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January | 18.2°C | 16°C | 20.2°C | cold |
Ocean water temperature in Coffin Bay in January | ||||
February | 18.2°C | 15.1°C | 21.1°C | cold |
Ocean water temperature in Coffin Bay in February | ||||
March | 17.8°C | 13.5°C | 20.9°C | cold |
Ocean water temperature in Coffin Bay in March | ||||
April | 17.5°C | 13.9°C | 19.4°C | cold |
Ocean water temperature in Coffin Bay in April | ||||
May | 16.7°C | 13.3°C | 18.8°C | cold |
Ocean water temperature in Coffin Bay in May | ||||
June | 15.7°C | 13.8°C | 17.4°C | cold |
Ocean water temperature in Coffin Bay in June | ||||
July | 14.6°C | 12.6°C | 16.6°C | cold |
Ocean water temperature in Coffin Bay in July | ||||
August | 14.2°C | 12.5°C | 15.5°C | cold |
Ocean water temperature in Coffin Bay in August | ||||
September | 14.8°C | 13.3°C | 17°C | cold |
Ocean water temperature in Coffin Bay in September | ||||
October | 15.9°C | 14.3°C | 17.5°C | cold |
Ocean water temperature in Coffin Bay in October | ||||
November | 16.9°C | 15.4°C | 19.8°C | cold |
Ocean water temperature in Coffin Bay in November | ||||
December | 17.8°C | 15.9°C | 19.9°C | cold |
Ocean water temperature in Coffin Bay in December |