Water temperature in Port Stephens

This data the coastal Port Stephens 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 Port Stephens

Water temperature in Port Stephens today is 17.1°C. Based on our historical data over a period of ten years, the warmest water in this day in the Tasman Sea near Port Stephens was recorded in 2017 and was 19°C, and the coldest 17.1°C. Sea water temperature in Port Stephens is expected to rise to 18.1°C in the next 10 days. September average water temperature in Port Stephens is 18.2°C, the minimum temperature is 16.1°C, and the maximum is 20.4°C.

The swimming season in Port Stephens lasts from November to June. During those months, Port Stephens water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Port Stephens in winter reaches 18.5°C, in spring 19.3°C, in summer the average temperature rises to 22.6°C, and in autumn it is 22°C.

Port Stephens water temperature now

The ocean salinity in Port Stephens is 35.20‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Port Stephens 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 Port Stephens. 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 Port Stephens. 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)

Surf report in Port Stephens

Port Stephens weather forecast

Current temperature and weather

Data in a table show Port Stephens temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Port Stephens.

0-3 h	3-6 h	6-9 h	9-12 h
13.5°C	13.1°C	13.5°C	16.1°C

12-15 h	15-18 h	18-21 h	21-24 h
17.7°C	16.8°C	15.2°C	15.5°C

Port Stephens water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Port Stephens. 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 Port Stephens 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 Port Stephens

The nearest beaches and cities from Port Stephens 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
Corlette	17.4°C	17°C		1.59 m
Anna Bay	17.7°C	17°C		1.37 m
One Mile Beach	18°C	17°C		1.37 m
Nelson Bay	17.7°C	17°C		1.37 m
Fingal Bay	17.7°C	17°C		1.37 m
Shoal Bay	17.7°C	17°C		1.37 m
Hawks Nest	17.6°C	17°C		1.37 m
Stockton	17.8°C	17°C		0.98 m
Merewether	17.8°C	17°C		1.43 m
Newcastle	17.9°C	17°C		1.43 m

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Our report for Port Stephens 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.