Water temperature in Hamelin Bay

This data the coastal Hamelin 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 Hamelin Bay

Water temperature in Hamelin Bay today is 18.1°C. Based on our historical data over a period of ten years, the warmest water in this day in Hamelin Bay was recorded in 2022 and was 19°C, and the coldest was recorded in 2017 at 17.4°C. Sea water temperature in Hamelin Bay is expected to be constant 18.1°C in the next 10 days. September average water temperature in Hamelin Bay is 18.1°C, the minimum temperature is 16.6°C, and the maximum is 20.5°C.

The swimming season in Hamelin Bay lasts from December to June. During those months, Hamelin Bay water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Hamelin Bay in winter reaches 19.4°C, in spring 18.4°C, in summer the average temperature rises to 20.5°C, and in autumn it is 21.4°C.

Hamelin Bay water temperature now

The ocean salinity in Hamelin Bay is 35.67‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Hamelin 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 Hamelin 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 Hamelin 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)

Surf report in Hamelin Bay

Hamelin Bay weather forecast

Current temperature and weather

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

0-3 h	3-6 h	6-9 h	9-12 h
15.3°C	14.7°C	14.8°C	13.9°C

12-15 h	15-18 h	18-21 h	21-24 h
13.5°C	13.4°C	12.1°C	11.3°C

Hamelin Bay water temperature by month

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

The nearest beaches and cities from Hamelin 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
Eagle Bay	17.9°C	13°C		2.48 m
Bunbury	16.3°C	14°C		1.99 m
Myalup	16.3°C	14°C		2.33 m
Halls Head	17°C	15°C		1.7 m
Mandurah	16.9°C	15°C		1.7 m
Erskine	16.9°C	15°C		1.7 m
Port Kennedy	17°C	14°C		2.15 m
Secret Harbour	17°C	14°C		2.34 m
Safety Bay	17.1°C	15°C		2.34 m
Greens Pool	17.5°C	13°C		1.76 m

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Hamelin Bay Beach

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Our report for Hamelin 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.