Water temperature in Yanchep

This data the coastal Yanchep 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 Yanchep

Water temperature in Yanchep today is 18.9°C. Based on our historical data over a period of ten years, the warmest water in this day in the Indian Ocean near Yanchep was recorded in 2014 and was 19.6°C, and the coldest was recorded in 2016 at 17.2°C. Sea water temperature in Yanchep is expected to drop to 18.6°C in the next 10 days. September average water temperature in Yanchep is 18.3°C, the minimum temperature is 16.1°C, and the maximum is 20°C.

The swimming season in Yanchep lasts from November to June. During those months, Yanchep water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Yanchep in winter reaches 19.3°C, in spring 19.1°C, in summer the average temperature rises to 22.3°C, and in autumn it is 22°C.

Yanchep water temperature now

The ocean salinity in Yanchep is 35.28‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Yanchep 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 Yanchep. 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 Yanchep. Data in table shown for 26 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Yanchep

Yanchep weather forecast

Current temperature and weather

Data in a table show Yanchep temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Yanchep.

0-3 h	3-6 h	6-9 h	9-12 h
15.9°C	15.7°C	15.6°C	16.6°C

12-15 h	15-18 h	18-21 h	21-24 h
18.1°C	17.5°C	15.6°C	14.8°C

Yanchep water temperature by month

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

The nearest beaches and cities from Yanchep 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
Guilderton	19.1°C	18°C		1.91 m
Hillarys	19°C	18°C		1.55 m
Sorrento	18.9°C	18°C		1.46 m
Mullaloo	18.8°C	18°C		1.46 m
Scarborough Beach	18.8°C	18°C		1.46 m
Trigg Beach	18.8°C	18°C		1.46 m
Floreat Beach	18.8°C	18°C		1.27 m
City Beach	18.8°C	18°C		1.27 m
Swanbourne	18.7°C	17°C		1.27 m
Claremont	18.4°C	18°C		1.05 m

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Our report for Yanchep 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.