Average monthly water temperature in Williamstown, Australia
On this page you find the mean water temperature over the year in Williamstown (Victoria), Australia. Understand how water temperatures vary throughout the year.
Water temperatures in Williamstown stay on the cooler side throughout the year. The warmest month, January, averages 17°C (63°F).
The coldest water temperature month is August, averaging 13°C (55°F). These cooler conditions are not the best for swimming enthusiasts.
Williamstown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Williamstown - and find the best time to visit.
Williamstown 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Williamstown climate overview or explore weather in Australia.
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