Water temperature in Tumby Bay

This data the coastal Tumby 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.

Current ocean temperature in Tumby Bay

Water temperature in Tumby Bay today is 14.8°C. Based on our historical data over a period of ten years, the warmest water in this day in the Spencer Gulf near Tumby Bay was recorded in 2023 and was 16.5°C, and the coldest was recorded in 2010 at 14°C. Sea water temperature in Tumby Bay is expected to rise to 15.6°C in the next 10 days. September average water temperature in Tumby Bay is 14.4°C, the minimum temperature is 12.8°C, and the maximum is 17°C.

The swimming season in Tumby Bay lasts from December to April. During those months, Tumby Bay water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Tumby Bay in winter reaches 14°C, in spring 16.2°C, in summer the average temperature rises to 21°C, and in autumn it is 19.1°C.

Tumby Bay water temperature now

The ocean salinity in Tumby Bay is 36.41‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Tumby Bay for today

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 Tumby 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 Tumby Bay. Data in table shown for 25 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Tumby Bay

Tumby Bay weather forecast

Current temperature and weather

Data in a table show Tumby Bay temperature today (25 September 2025). For more information and forecast for a few days, go to the weather forecast Tumby Bay.

0-3 h	3-6 h	6-9 h	9-12 h
8.6°C	8.1°C	8°C	14.5°C

12-15 h	15-18 h	18-21 h	21-24 h
18.7°C	18.3°C	12.2°C	10.9°C

Tumby Bay water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Tumby 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 Tumby 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

Chart monthly average water temperature in Tumby Bay

The nearest beaches and cities from Tumby Bay with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Port Neill	14.5°C	23°C		0.54 m
Arno Bay	14.3°C	23°C		0.7 m
Coffin Bay	15.2°C	18°C		1.07 m
Cowell	15°C	21°C		0.7 m
Marion Bay	14.9°C	17°C		1.66 m
Point Turton	14.6°C	16°C		0.65 m
Port Hughes	15.1°C	16°C		0.92 m
Moonta	15.2°C	16°C		0.75 m
Wallaroo	15.1°C	21°C		0.57 m
Elliston	15°C	18°C		2.19 m

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Our report for Tumby Bay is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.